----- Nội dung dịch tự động từ ảnh -----
20. Nam leaves home at 7 o'clock
21. He teaches English at the high school.
22. The lesson is very difficult.
23. She often does the housework after doing exercises.
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24. Liz will send these letters to her friends.
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25. My favorite subject is Science.
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26. She learns about computers in computer science class.
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27, My mother is cooking in the kitchen at the moment.
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28. The children swim in the lake.
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29. She leaves her suitcase on the train.
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30. .The company sends the new worker to California.
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31. My sister dreams about the monster last night.
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32. My grandmother hears a loud in this morning.