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: There are much kinds of books in my school library,but readers cannot borrow them.

A. are

B. much

C. in

D. cannot

Câu 2: If I had enough money, I would have travelled around the world.

A. enough

B. would have travelled

C. the

D. world

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: 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 5: Would you mind showing me how working the lift?

A. mind

B. showing

C. how

D. working

Câu 6: We are going to visit our grandparents when we will finish our final exams.

A. are going to

B. our

C. when

D. will