Câu hỏi: Today the number of people enjoying winter sports are almost double that of twenty years ago.

A. of

B. enjoying

C. are

D. that

Câu 1: In the end of the party, Mary found herself washing the dishes alone again, as usual.

A. In the end of

B. herself

C. washing

D. as usual

Câu 2: Because they had spent too many time considering the new contract, the students lost the chance to lease the apartment.

A. because

B. too many

C. considering

D. to lease

Câu 3: Everyday in summer, but especially at the weekends, all kinds of vehicles bring crowds of people to enjoy the various attraction.

A. especially at

B. bring

C. crowds of people

D. various attraction

Câu 4: By the time the police come the robber had run away.

A. By the time

B. the

C. come

D. had run

Câu 5: He has a great deal of books most of which are on science and technology.

A. a great deal of

B. most of

C. which

D. are on

Câu 6: The workers went on strikes because of they thought their wages were low.

A. on

B. because of

C. thought

D. were