Câu hỏi: Mother’s Day is the day when children show their love on their mother on.

A. Mother’s Day

B. the day

C. when

D. on

Câu 1: By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

A. By the mid-nineteenth century

B. such expensive

C. conserve

D. by designing

Câu 2: 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 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: The workers went on strikes because of they thought their wages were low.

A. on

B. because of

C. thought

D. were

Câu 5: Many teachers have devoted their lives to teaching therefore teaching is not a well-paid job.

A. devoted

B. lives

C. teaching

D. therefore

Câu 6: Today the number of people enjoying winter sports are almost double that of twenty years ago.

A. of

B. enjoying

C. are

D. that