Carbon dioxide ________ as one of the main contributors to the green house effect. A. has been identified B. has identified C. had been identified D. had identified

Câu hỏi:

11/01/2025 166

Carbon dioxide ________ as one of the main contributors to the green house effect.

A. has been identified

Đáp án chính xác

B. has identified

C. had been identified

D. had identified

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Trả lời:

Giải bởi Vietjack

Đáp án: A

Giải thích:

Câu không có trạng từ chỉ thời gian rõ ràng → dựa thêm vào ngữ nghĩa, chia ở thì HTHT → loại C và D

Dựa vào ngữ nghĩa → câu mang nghĩa bị động → chọn A

Dịch: Carbon dioxide được xác định là một trong những nguyên nhân chính gây nên hiệu ứng nhà kính.

Nhà sách VIETJACK:

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

As she grows older, she becomes increasingly cheerful.
The older _{.........................................................................................................................................................................}

Xem đáp án » 13/07/2024 3,475

Câu 2:

Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given.

The accident took place just after the workers started their work. (started)

Hardly _{……………..……………………..……………………..………}when the accident happened.

Xem đáp án » 13/07/2024 2,934

Câu 3:

SECTION I: LISTENING

Listen to an interview on the radio, with two schoolmates, who both work on their school magazine. Choose the correct answer A, B or C for each of the following questions.

Why did Callum and Gemma’s school first start producing a magazine?

A. The headteacher wanted to find a way to improve student’s writing.

B. The students asked their head teacher if they could do it.

C. The school wanted its students to get some work experience.

Xem đáp án » 16/08/2023 2,920

Câu 4:

Why didn’t they tell me about these changes earlier? (should)

I _{……………..……………………..……………………..………}about these changes earlier.

Xem đáp án » 13/07/2024 2,916

Câu 5:

Back in my grandparent’s day, fashion didn’t change so fast (76) _{……………..………}it does these days.

Xem đáp án » 13/07/2024 2,676

Câu 6:

We had the phone _{…………………………..………}because we are moving tomorrow. (connect)

Xem đáp án » 13/07/2024 2,621

Câu 7:

Paula said I had caused the accident. (blamed)

Paula _{……………..……………………..……………………..………}the accident.

Xem đáp án » 13/07/2024 2,606

Xem thêm các câu hỏi khác »

Hỏi bài tập

Carbon dioxide ________ as one of the main contributors to the green house effect.

Nhà sách VIETJACK:

Bình luận

As she grows older, she becomes increasingly cheerful.
The older _{.........................................................................................................................................................................}

SECTION I: LISTENING

Listen to an interview on the radio, with two schoolmates, who both work on their school magazine. Choose the correct answer A, B or C for each of the following questions.

Why did Callum and Gemma’s school first start producing a magazine?

Why didn’t they tell me about these changes earlier? (should)

I _{……………..……………………..……………………..………}about these changes earlier.

Back in my grandparent’s day, fashion didn’t change so fast (76) _{……………..………}it does these days.

We had the phone _{…………………………..………}because we are moving tomorrow. (connect)

Paula said I had caused the accident. (blamed)

Paula _{……………..……………………..……………………..………}the accident.

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🔥 Đề thi HOT:

Carbon dioxide ________ as one of the main contributors to the green house effect.

Nhà sách VIETJACK:

Bình luận

As she grows older, she becomes increasingly cheerful.The older .........................................................................................................................................................................

SECTION I: LISTENING Listen to an interview on the radio, with two schoolmates, who both work on their school magazine. Choose the correct answer A, B or C for each of the following questions. Why did Callum and Gemma’s school first start producing a magazine?

Why didn’t they tell me about these changes earlier? (should) I ……………..……………………..……………………..………about these changes earlier.

Back in my grandparent’s day, fashion didn’t change so fast (76) ……………..………it does these days.

We had the phone …………………………..………because we are moving tomorrow. (connect)

Paula said I had caused the accident. (blamed) Paula ……………..……………………..……………………..………the accident.

VIP +3 tháng ( 199,000 VNĐ )

VIP +6 tháng ( 299,000 VNĐ )

VIP +12 tháng ( 499,000 VNĐ )

🔥 Đề thi HOT:

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Quên mật khẩu

As she grows older, she becomes increasingly cheerful.
The older _{.........................................................................................................................................................................}

SECTION I: LISTENING

Listen to an interview on the radio, with two schoolmates, who both work on their school magazine. Choose the correct answer A, B or C for each of the following questions.

Why did Callum and Gemma’s school first start producing a magazine?

Why didn’t they tell me about these changes earlier? (should)

I _{……………..……………………..……………………..………}about these changes earlier.

Back in my grandparent’s day, fashion didn’t change so fast (76) _{……………..………}it does these days.

We had the phone _{…………………………..………}because we are moving tomorrow. (connect)

Paula said I had caused the accident. (blamed)

Paula _{……………..……………………..……………………..………}the accident.