Câu hỏi: Most bothersome flies belong to the family Sarcophagidae and are popular known as flesh flies because the larvae feed on flesh.

A. belong to

B. popular known

C. because

D. feed on

Câu 1: The longer the children waited in the long queue, the more impatiently they became

A. the longer

B. waited

C. the long queue

D. impatiently

Câu 2: Some species of bats are dormant each days and active every night.

A. species of

B. each days

C. every night 

D. are dormant

Câu 3: Developing new technologies are time-consuming and expensive.

A. developing 

B. technologies

C. are

D. time-consuming

Câu 4: The assumption that smoking has bad effects on our health have been proved.

A. that

B. effects

C. on

D. have been proved

Câu 5: Society uses such human emotions as proud, shame, guilt, and fear to maintain itself.

A. such human

B. proud

C. guilt

D. itself

Câu 6: Not until he got home he realized he had forgotten to give her the present.

A. got

B. he realized

C. her

D. the present