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

Wild animals ______ in their natural habitat will have a better and longer life than those which are kept in protected areas.

A. are watching

B. have watched

C. were watching

D. watched

A. which

B. whose

C. who

D. whom

A. He has started been investigating the case for a week.

B. He is investigating the case for a week.

C. He has been investigating the case for a week.

D. He has been investigating the case for a week ago.

A. exchanged

B. exchange

C. to be exchanged

D. exchanging

A. every applicants write

B. an applicant writes

C. an applicant must be writing

D. every applicant write

A. As a teacher, she always strikes me

B. My impression of her is that she is a very effective teacher

C. She is such an effective teacher that she always strikes her students

D. I make an effective impression on the teacher