Whenitresearchintoheartdisease_优题课试题网

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更新 2022-09-03
科目英语
题型单选题
难度中等
浏览 1853

When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

A．refers to

B．related to

C．comes to

D．talks to

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Since last year I____ him only once.

A． have seen

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I ___ happy about the price of eggs.

A．am’t

B．am not

C． do not

D．won’t

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____ here early?

A． Will he

B．Was he

C． Did he be

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He was afraid what he had done ______ a disastrous effect on his career.
a. might have b. could be c. have been d. shall be

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Since your roommate is visiting her family this weekend,_____ you like to have dinner with us tonight?
a. will b. won’t c. wouldn’t d. do

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