Câu hỏi: Can you open _________ door, please?

A. a

B. the

C. an

D. No article needed.

Câu 1: There _________ a lot of trees on our block.

A. are

B. been

C. be

D. is

Câu 2: I. Choose the word or phrase which best completes each sentence.

A. opening

B. open

C. opened

D. to open

Câu 3: I don't like _________ milk.

A. a

B. the

C. an

D. No article needed.

Câu 4: The boy _________ won the two medals is a friend of mine.

A. which

B. whose

C. whom

D. who

Câu 5: His illness was caused by _____.

A. overwork

B. health

C. fitness

D. vegetables

Câu 6: This is _________beautiful piano that I'm sorry I have to sell it.

A. too

B. such

C. such a

D. so