Câu hỏi: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 1: Because her sickness she didn’t take part in the English competition held in Sunday.

A. Because

B. she

C. take

D. held

Câu 2: My father asked me where had I gone the night before.

A. asked

B. the 

C. before

D. had I

Câu 3: The teacher together with his students have finished their project on time.

A. The

B. together 

C. have

D. their

Câu 4: David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

A. who

B. is

C. speaks 

D. fluently

Câu 5: Mr. Smith, along with her cousins from Canada, are planning to attend the firework display in Da Nang, Vietnam.

A. with

B. her cousins

C. are

D. to attend

Câu 6: Optimists believe that in future we will be living in a cleaner environment, breathing fresher air and eat healthier food.

A. Optimists believe

B. in future

C. living in a cleaner

D. eat healthier food