Trên hình vẽ thanh nam chân song song với mặt phẳng vòng dây dẫn (C). Xác định chiều dòng điện cảm ứng từ trong (C) a) Khi nam châm quay đi một góc 90° đến vị trí sao cho cực Nam hướng vào (C) b) Khi nam châm quay đi một góc 90° đến vị trí sao cho cực Bắc hướng vào (C)

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9. How_________you (feel) __________now? - I (feel) ________hot. 10. We'll go out when the rain (stop)___________. 11. Listen! Birds (sing)_______________. 12. Bears (like) honey____________. 13. What_________ you (do)___________ now? - We (play) __________soccer. 14. Mr. Thanh (teach) ___________me English. 15. Where__________ your mother (be)? - She (be) _______in the bathroom. May be, she (have) __________a bath. 16. My father (jog) _________every morning. 17. Look! The bus (come)___________. 18. The birds (build) __________their nests when the spring (come)___________ 19. We (visit) _____________Huong pagoda next week. 20. She (have) ____________a meeting tonight. 21. Mai (brush) ___________her teeth after meals. 22. They (live) ___________with her grand mother in HN now. 23. Mr Thanh (be) __________a doctor. He (work) ___________in a hospital in the city center. Everyday he (catch) _________the bus to work. 24. We (not see) _____________________her since yesterday. 25. Nam (learn)__________________ English for two years 26. She (teach)________________ English at ML school for 8 years. 27. I _______never (forget) ________what you ________just (tell) _________me 28. Long (work)______________ at U so far. 29. My father (not smoke) ______________for 5 years. 30. Up to now, the teacher (give)_____________ us 5 tests. This is the first time my class (have) ________________such a fantastic holiday. 31.____________you__________(do) the homework yet? 32. Lan (see) _________________this film three times. 33. We (wait)_______________ you since two o’clock. 34. She (do)___________________her homework recently. 35. She (not learn) ___________to play the piano.