Câu hỏi: The big problem was that we really did not understand what was happened

A. problem

B. that

C. did not

D. was happened

Câu 1: The eastern bluebird is considered the most attractive bird native of North America by many bird-watchers.

A. bluebird

B. considered

C. native of

D. by

Câu 2: The guide told the tourists that it was a good restaurant specializing in seafood just round the corner from the museum.

A. The

B. it was a

C. specializing

D. just round

Câu 3: By the turn of the century, most of the inventions that were to bring in all the comforts of modern living has already been thought of.

A. By the turn of

B. that

C. were to

D. has already been

Câu 4: The freshman failed to follow the advice of her senior that he studied hard and not go out too much.

A. freshman

B. her

C. studied

D. not go out

Câu 5: On the wedding day, the groom's family and relatives go to the bride’s house bring gifts wrapped in red papers.

A. On

B. groom’s

C. go

D. bring

Câu 6: Parks which are found in downtown areas where office workers and store employees can enjoy their lunch hours sitting on the green grass in clean, fresh air.

A. which

B. employees

C. lunch hours sitting

D. fresh air