c) x ^ 2 - 7x - 4(7 - x) = 0

Nêu điểm mạnh và yếu của căn cứ Bãi Sậy

Một con ngựa kéo một cái xe đi đều với một lực 500N trên một quãng đường dài 3000m trong thời gian 600 giây. a) Tỉnh công và công suất của con ngựa kéo trên quãng đường này b) Nếu con ngựa kéo một cái xe khác với công suất như trên đi 4km thì mất 15 phút. Tính lực kéo của con ngựa trên quãng đường này?

Nhân dân ta đã phối hợp với quân đội triều đình như thế nào để kháng chiến chống thực dân Pháp trong giai đoạn 1858 - 1883? 3đ

1. Would you mind________this letter for me? (post) 2. My uncle is very_________in the history of Viet Nam. (interest) 3. It rained________last night. (heavy) 4. The teacher________me Physics is very nice. (teach) 5. I've just visited an________institute in this city (ocean) 6. Nam made______about what time to start the meeting. (suggest) 7. Who is the girl________in the next room? (sing) 8. He is sitting on the chair__________of wood. (make) 9. Your plan sounds__________(interest) 10. What is Hoi An_________for? (fame) 11. There are___________limestone islands in Ha Long Bay. (beauty) 12. These ancient building are the________heritage. (nation) 13. Sapa is a famous___________resort in Vietnam. (mountain) 14. There are flights_________from Ho Chi Minh to Nha Trang. (day) 15. The next___________for New York will be at 11:00 (depart)

V. Put the words in the right order : 1. My parents /would like/ you/ to/I/ my sister/ and meet / Shanno. 2. In/ the front seat/ the taxi / of/would/sitting/mind / you. 3. A boy/I/riding/see/can/ a water buffalo. 4. The airport/from/is/traveling/in/a bus/The Jones family. 5. As much/ Mary/ Vietnam/ loves/ by train/ to see/ of/ as possible/ wants/ she/ the country/ and/ to travel. 6. Is/ in / Vietnam/ interested/ John/ the/history/of. 7. Decied/they/ one afternoon,/ to paddle/ in/ Xuan Huong Lake/ a caoe/ around. 8. Soon/ appeared/it/ and/began/raining/ clouds/Unfortunately,/ dark. 9. Fell into/ overtuned/ the canoe/ and/ the/water/ deep/ dangerous /everyone /and. 10. Is/Ba/ a book/ reading/ the/ boy. 11. Five dollars/is/ the/ China/ made/ lamp/old. 12. I/ leave/do/early/you/ mind/ if? 13. Who/have/no/ to help/ the council/ be able / should / families/ accommodation. 14. Broken down/to/ the airport/ the taxi/us/ taken/. 15. Your/you/ would/ if/ borrowed/ mind/I/dictionary?

Sắp xếp câu plastic bags/be/ should/Cloth bags/used/of/ instead.

VI. Rearrangement. 1.that/about/She/to/ was/hear/ disappointed 2.The/ Linda/ representatives/is/of/ Earth/one/from/of/friends/ the. 3.writing/read/is/Your/difficult/to. 4.night/Paul/I/last/surprised/was/see/to/party/the/at. 5.plastic bags/be/ should/Cloth bags/used/of/ instead. 6.things/ We/away/ throw/shouldn't. 7.reused/milk/every/times/bottle/be/thirty/can. 8.overpackaged/are/which/products/buying/not/means/reduce. 9.milk/of/bottles/brings/milkman/The/to/ones/and/empty/collect/the/houses. 10.things/wrap/to/leaves/tree/use/should/We.