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I don't know when______. When he ______,I'll call you.
A． will he come; will comeB． does he come; comes
C． he comes; will comeD． he will come; comes
D
此題重點考查when引導(dǎo)的時間狀語從句和賓語從句的基本結(jié)構(gòu)和用法。
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