13、Do you know ________ the bike without any help yesterday?
A．how does he fix up B．how he fixes up
C．how he fixed up D．how did he fix up
科目：初中英語 來源： 題型：
Do you know ________ the bike without any help yesterday?
A．how does he fix up B．how he fixes up
C．how he fixed up D．how did he fix up
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