题目内容
20．I am wondering ______________．（ ）| A． | why did he come to school late | B． | why he came to school late | ||
| C． | that he came to school late | D． | why was he late for school |
分析 我想知道他为什么上学迟到了．
解答 答案：B．
根据I am wondering ______________．可知句子是一个宾语从句，宾语从句的语序应为陈述句的语序，排除A和D；结合语境wonder是想知道的原因，应选疑问词why，故选B．
点评 应熟练掌握宾语从句的用法：其主要包括时态，语序，人称和引导词等几个方面，做题时应该从这几个方面入手．
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