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: Dresses, skirts, shoes and children’s clothing are advertised at great reduced prices this week.

A. children’s clothing

B. are advertised

C. at

D. great

Câu 2: He said that he has done his homework since 7 o'clock.

A. said

B. has done

C. homework

D. since

Câu 3: The threat of being dismissed do not worry me any more because I have started my own business.

A. The

B. being dismissed

C. do not worry

D. my own business

Câu 4: The US, that is one of the most powerful countries, decided to declare a war to Iraq.

A. that

B. powerful

C. decided

D. a war to

Câu 5: 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 6: 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