Câu hỏi: 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 1: A smile can be observed, described, and reliably identify, it can also be elicited and manipulated under experimental conditions.

A. identify

B. experimental

C. can also

D. A smile

Câu 2: Neither of the men arresting as terrorists would reveal information about his group.

A. Neither

B. arresting

C. would reveal

D. his group

Câu 3: Proteins are made up of folded irregularly chains, the links of which are amino acids.

A. made up of

B. folded irregularly

C. the links

D. which

Câu 4: Neither William or his brother stole the rambutans from our orchard.

A. or 

B. stole 

C. from

D. our orchard

Câu 5: Having finished his tem paper before the deadline, it was delivered to professor before the class.

A. having finished

B. before

C. it was delivered

D. before

Câu 6: The bones of the elderly are more prone to fractures than of young people.

A. the elderly 

B. more

C. to

D. of