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We can never forget the days _______ the two astronauts in spaceship worked together and the days ________ we spent together.

 A. when; which  B. which; when  C. what; that  D. on which; when

A


解析:

選擇定語從句的關(guān)系詞關(guān)鍵在于區(qū)別關(guān)系詞在從句中作什么成分。第一個先行詞the days在從句中作狀語,故用when或on which; 而第二個the days在從句中作spent的賓語必須用which或that。綜合兩個空,只能選A。

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