题目

Actor Orson Welles described ______ in his famous trick. A. where had aliens landed              B. where aliens had landed C. where will aliens land                   D. where aliens will land 答案：B 解析：该题考查的是宾语从句，要注意使用陈述句语序，主句时态是一般过去时，而    描述的事情应该在主句时间之前，所以使用过去完成时。

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