题目内容：

If you can not ____(mend) your bike yourself,have it ____(repair).
I also called up parents ___(offer) singing lessons.
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优质解答

mend can是情态动词,情态动词后面接动词原形repaired have在这里是使役动词,表示“使...”,it指bike,自行车应该是被修理的,表示被动,用动词的过去分词.have sth done 表示“使...被...”to offer 这里called up pare...