whenhestart?a.is;hiccuppingb.was;hiccuppingc.did;hiccupd.did;hiccupping

题目详情

when____ he start____?a.is;hiccupping b.was;hiccupping c.did;hiccup d.did;hiccupping

▼优质解答

答案和解析

D
start doing sth.

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