I’m not sure if he ______ in this exam. But if he ______ harder, he will do bet
题型：不详难度：来源：
I’m not sure if he ______ in this exam. But if he ______ harder, he will do better.| A．succeeds; works | B．will succeed; will work | | C．will succeed; works | D．succeeds; will work |
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答案
| C |
解析
试题分析：句意:我不确定他是否能在这次考试中成功；但是如果他工作得更努力，他会做得更好。本句中两个if 的意思并不一样。第一个if 意为是否，引导宾语从句，根据句意可知，考试还没进行，故用一般将来时；第二个if 意为如果，引导条件状语从句，从句中用一般现在时，主句用将来时。故选C。 |
举一反三
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If he____, I will be very happy.| A．comes; comes | B．came; will come | | C．will come; comes | D．will come; came |
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