Xiao Li is said _________ abroad, but I don’t know what country he studied in.
A．to studyB．to be studyingC．to be studiedD．to have studied
D

試題分析：如果將題干改成下列句子：It is said that Xiao Li  _______ abroad, but I don’t know what country he studied in.上下句謂語動詞發(fā)生的時間關(guān)系就一目了然：很顯然“留學(xué)”應(yīng)該發(fā)生在過去。It is said that Xiao Li studied abroad, but I don’t know what country he studied in.轉(zhuǎn)換成：Xiao Li is said to have studied abroad, but I don’t know what country he studied in.動詞不定式的完成式除了表示“完成(Xiao Li is said to have gone abroad.據(jù)說小李已經(jīng)到國外去了)”，還可以表示“過去”。如果將下文改成“but I don’t know what country he is studying in”則備選項B就是正確答案了。
句意：據(jù)說小王在國外留過學(xué)，但是我不知道他在什么國家學(xué)習(xí)過。  
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