1 khung dây có100 vòng mỗi vòng có S=20cm^2 Đạt trong từ trường có vecto B hợp với mặt phẳng khung một góc 30 độ B=0,1T. Tính từ Thoòng qua khung dây

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1. They often (go) for dinner on Saturday afternoon. 2. The sun (rise) in the east and (set) in the west. 3. My class (start) at 7.00 a.m and (finish) . 4. We (receive) your letter two days ago. 5. My sister (start) ________ a new job since last week. 6. Yesterday I (be) _____ busy so I (not / have) _________ time to phone you. 7. We (live) ______ in London for ten years. 8. We (not / see) _________________ each other since last week. 9. Our dad (start) _______ a new job since yesterday. 10. They help the community by (participate) __________ in the recycling program. 11. He enjoys (get) up late on Sunday morning. 12. When I (be) young, I used to (love) this book. 13. Last night, I (go) to bed late. Suddenly I (hear) ________ a noise. 14. Martha (phone) me yesterday. She’s on holiday in France. 15. What you (use) to do in your free time? I used to go jogging. 16. My father used to (tell) ______________ us stories when I was young. 17. What ____ you (do) _________ last night? I (watch) ________TV. 18. I (read) _________ this book for two hours. 19. She likes (read) _______ comic books in the library. 20. Lan (be) _________ to the USA for 2 years. 21. We (learn) ______________ since 1999. 22. They (eat / already) _______________________ Chinese food. 23. Mr. Nam (work) _________________________ in this factory for 10 years. 24. How long ______ you (live) _______ in Hanoi? I (live) _________ there for 10 years. 25. Ba like sports, especially (play) _______ football and (swim) _______ 26. You should (get) ________ up early in the morning. 27. Sandra needs (improve) _________ her English writing. 28. You should (underline) ______________ the words you want (learn) ______ . 29. Can you help me (move) __________this table? 30. What _____ they (do) ______ next summer vacation? They (visit) ____________ their parents in HCMC. 31. Nga Likes (study) ______ English. 32. It is difficult (climb) _______ the mountain 33. The members in our club (collect) _______ used paper to earn money last month. 34. She ought (practice) ________ her English more frequently. 35. Everyone stopped (laugh) ________ when I (come) ________