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

The general public ________ a large number of computers now, because prices are beginning to decrease.

A. must buy

B. must be buying

C. must have bought

D. must bought

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.

The world is becoming more (A) industrialized and the number of animal (B) species that have becoming (C) extinct (D) have increased. Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

A.  industrialized

B. species

C. extinct

D. have

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

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

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

The minister ________ to say whether all the coal mines would be closed.

A. refused

B. avoided

C. denied

D. bothered

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

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

My father has to work ________ a night shift once a week

A. at

B. in

C. on

D. under