A: I saw Tom just now at the caféB:It ()be him. He went to U.S.A. yesterday.A. mustn&A: I saw Tom just now at the café
B:It ()be him. He went to U.S.A. yesterday.
A. mustn't
B. can't
C. shouldn't
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What's ()job? Are () British?
A. your, your
B. you, your
C. your, you
You should not try to ____ while others are talking.
A. interrupt
B. deliver
C. extend
D. pretend
Many animals ____ green plants for their food.
A. carry out
B. base on
C. depend on
D. look for
小儿易发生肺部感染的内因是
A. 呼吸中枢发育不健全
B. 黏膜纤毛运动差
C. 肋骨呈水平位,潮气量少
D. 肺含血量丰富,含气量少
E. 胸腔小而肺相对较大