isdoing的精選

WhenJim’smothercamein,he　　　　　hishomework. A. isdoing ...

2019-07-16

問題詳情：WhenJim’smothercamein,hehishomework. A. isdoing B. hasdone C. wasdoing【回答】C知識點：動詞和動詞短語題型：選擇題...