Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The water is __________. You can’t drink it

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

When he returned home, I found the door ______ .

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

By the time I return to my country, I ___________ away from home for more than three years

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The building work is still on schedule _________ a problem in digging the foundation.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions

I like lying(A) on the beach (B), so I always (C) spend my holiday to sunbathe (D)

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Many old people don’t like to change. They are very set in their ______.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions

A lot of (A) discoveries have made (B) in (C) the fields of (D) chemistry and physics.