I. Find ONE mistake in each sentence: 1.5. At 7 p.m yesterday, while(A) I was doing(B) my homework, my father watched (C) a(

1 bình luận về “I. Find ONE mistake in each sentence: 1.5. At 7 p.m yesterday, while(A) I was doing(B) my homework, my father watched (C) a(”

1. watched -> was watching

   – Quá khứ tiếp diễn – 2 sự việc diễn ra đồng thời

   +) While + QKTD, QKĐ

   + While + QKTD, QKTD

   – QKTD : Quá khứ tiếp diễn

   (+) S + was/were + Ving

   – She, he, it và N số ít – was

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