题目

Could you tell me _____ the bike without any help this morning?A．how does he mendB．how he mendedC．how he mendsD．how did he mend 答案：B解析:本题考查宾语从句。宾语从句要用陈述语序，排除A 和 D；结合句意“今天早上没有帮助的情况下，你是怎么修的自行车”可知mend发生在过去。

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