Câu hỏi: By measuring the color of a star, astronomers can tell how hot is it.

A. measuring

B. the

C. how

D. is it

Câu 1: Although caffeine is a moderately habit-forming drug, coffee is not regarded as harmfully to the average healthy adult.

A. moderately

B. habit-forming

C. harmfully

D. healthy

Câu 2: Generally, Europe and Asia are regarded as being distinct continents, but they are simply vast geography divisions of the larger lad mass known as Eurasia.

A. Generally

B. are regarded

C. vast geography

D. known as

Câu 3: The bus was plenty of people who had spent many a happy hour shopping at the new.

A. plenty of

B. who

C. many a happy hour

D. shopping

Câu 4: There are many different ways of comparing the culture of one nation with those of another.

A. There are

B. of comparing

C. those

D. another

Câu 5: An ambitious person is committed to improve his or her status at work.

A. is

B. improve

C. status

D. at

Câu 6: Building thousands of years ago, the ancient palace is popular with modern tourists.

A. building

B. ago

C. the ancient 

D. popular with