Laser/ device/ concentrate/ light waves/ intense/ beam/

Question

Laser/ device/ concentrate/ light waves/ intense/ beam/

a. Laser is a device to concentrate light waves into an intense light beam.

b. The laser is a device concentrating light waves on an intense light beam.

c. The laser is a device which concentrates light waves into an intense light beam.

d. A laser is a device which concentrates light waves to an intense light beam.

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Answer 1

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Giải bởi Vietjack

Đáp án đúng là c.

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Laser/ device/ concentrate/ light waves/ intense/ beam/

True or false? The temperature on the moon is stable during the day and night.

An increasing number of journey are being made by air, and the (36) _______ are therefore demanding a new kind of plane to help them cope with increasing passenger numbers.

At the height of the financial crisis, all they could do was to ________ __ their expenses and hope that things would improve.

C. Identify the one underlined word or phrase - A, B, C or D - that must be changed for the sentence to be correct. Although Debbie said she would think about it, she never had the slightestintention to accept my suggestion. A B C D

Marion was pleased with a work the children had done on their own. A B C D

Using the new software, _________parents will be able to monitor their children‘s use of ___________ Internet.

They will be taking part the discussions, along with many other organizations. A B C D

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True or false?

The temperature on the moon is stable during the day and night.

At the height of the financial crisis, all they could do was to ______ their expenses and hope that things would improve.

C. Identify the one underlined word or phrase - A, B, C or D - that must be changed for the sentence to be correct.

Although Debbie said she would think about it, she never had the slightestintention to accept my suggestion.

A B C D

Marion was pleased with a work the children had done on their own.

A B C D

Using the new software, _parents will be able to monitor their children‘s use of ___ Internet.

They will be taking part the discussions, along with many other organizations.

A B C D