Câu hỏi: 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 1: 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 2: Would you mind showing me how working the lift?

A. mind

B. showing

C. how

D. working

Câu 3: We are going to visit our grandparents when we will finish our final exams.

A. are going to

B. our

C. when

D. will

Câu 4: 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 5: The chemistry instructor explained the experiment in such of a way that it was easily understood.

A. in

B. such of a way that

C. was

D. easily understood

Câu 6: 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