摘要：1 When I returned home, he . 2 By ten yesterday evening, she writing. 3 He English for five years before he came here. 4 It raining when I wake up this morning. 5 I the book because I had read it before. 6 She said she (be) born in 1992. 7 When he to China two years ago he found people didn't understand him at all though he some Chinese in his own country. 8 I saw Han Mei yesterday. We each other since left Beijing. 9 When I got to his home, he (go) to bed. 10 She asked if Mr. Liu already back. 答案:1 had left 2 had finished 3 had studied 4 had stopped 5 didn't read 6 was 7 came had learned 8 hadn't seen 9 had gone 10 had come

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