Câu hỏi: Each of the members of the group were made to write a report every week.

A. were

B. members

C. to write

D. week

Câu 1: Henry David Thoreau was an American writer who is remembered for his faith in religious significance of the nature.

A. an

B. is

C. for

D. the nature

Câu 2: It is very difficult for her to prevent him for smoking in her house.

A. very

B. for 

C. prevent 

D. for smoking

Câu 3: More than ten students have failed the exam, that surprised the class teacher.

A. more than

B. have failed

C. that

D. the

Câu 4: Tom said that he was trying to carry out some campaigns to protect environment and will encourage others to do so.

A. he was trying

B. some

C. campaigns

D. will

Câu 5: Although most species of small birds gather in groups at feeders provided by bird-watchers, the bright red cardinals usually appears alone or with its mate.

A. at

B. cardinals

C. or

D. its

Câu 6: Students suppose to read all the questions carefully and find out the answers to them.

A. suppose

B. all the

C. all the questions

D. them