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—He was nearly drowned once.

—When was ______?

—_____was in 1998 when he was in middle school.

A. that; It         B. this; This          C. this; It      D. that; This

A


解析:

指上文提到的事多用that;后空是強調(diào)結(jié)構(gòu)的簡略式,完整的句是It was in was in 1998 when he was in middle school that he was nearly drowned once.其中when he was in middle  school是定語從句。

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