I have already forgotten ______ you bought the computer.

A. that it was when B. that it was what

C. what it was that D. when it was that

D

【解析】

試題分析：句意：我已經(jīng)忘了你究竟是什么時候買的這臺電腦的了。you bought the computer說明句子的主謂賓結(jié)構(gòu)完整，所以用疑問副詞when放在強調(diào)句中，在賓語從句中句子的語序是陳述語序，故選D。

考點：考查賓語從句和強調(diào)句式的用法。

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