In the broadest sense, just as archaeology is an aspect of anthropology, ______.A．so too i

In which of the following sentences, "it" is used for emphasis?

A．It is everybody"s duty to obey the law.

B．I found it difficult for me to stay up at night.

C．It is amazing that I can run so fast.

D．It is the book that she gave me.

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______ rockets had been used sporadically for several hundred years, they remained a relatively minor artifact of civilization until the twentieth century.

A．Despite

B．In spite of

C．In spite the fact that

D．Despite the fact that

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When ______ the reason for their success, the kids had two explanations: hard work and their parents encouragement.

A．asking

B．asked

C．having asked

D．had asked

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Doing morning exercises has helped to improve her health, ______?

A．isn"t it

B．hasn"t it

C．hasn"t they

D．hasn"t she

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