( ) You should understand the traffic rule by now. You've had it often enough. A. explaining B. to explain C. explain D. explained [解析]選D 本題考查非謂語動詞充當(dāng)賓語補足語 的用法.在have sth. done結(jié)構(gòu)中."done"與sth. 含有被 動關(guān)系.在本題中.the traffic rule與explain有被動關(guān)系. 因此.選D. 【查看更多】

 

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(2005·天津)

You should understand the traffic rule by now. You've had it ________ often enough.

[　　]

A．explaining
B．to explain
C．explain
D．explained

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