1He _____（leave） when I came in .2 While he was in beijing ,he ____（call）on us every month.
题目
1He _____（leave） when I came in .2 While he was in beijing ,he ____（call）on us every month.
3I ____(not hear)from him since he lived in shanghai
答案
1.was,leaving
2.called
3.haven't ,heard
举一反三
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