Tiếng Anh Lớp 8: Dùng thì quá khứ hoàn thành hoặc thì quá khứ đơn trong những câu sau 1. After John___________(wash) his clothes, he began to study 2. George______(wait) for one hour before the bus came 3.Maria_____(enter) the university after she had graduated from the community college 4.Laura_____(wash) the pipettes after she had completed the experiment 5. Jane sent a letter to her university after she_____(receive) her scholarship check 6. After the stewardesses had served lunch to the pasengers,they______(sit) dow 7. The car_____(flip) ten times before it landed on its roof 8. We corrected our papers after we_____(take) the quiz 9. John_______(live) in Miami for one year when his parents came to vist, giúp em giải bài này ạ, em cảm ơn thầy cô và các bạn nhiều.
