II. Put the verbs in the brackets into the correct tense. 1. She (come) …………………………..………. to France 2 years ago. 2. I (just send) …………………………………………. the letter. 3. He (work)……………………………………. for that company for 5 years. 4. I (graduate)……………………..………. from Hue University last year. 5. Tom (play )……………………….………. football every afternoon. 6. I (cook) ……………………………..…. in the kitchen when he came in 7. Mai (attend) …………………..…………. a meeting at the moment. 8. (help) ………………………..…. him whenever he needs. 9. Mary (find) ………….… a five – pound note while she (walk) …………………to school yesterday. 10. I (just finish) ………………… reading War and Peace .It’s a brilliant book. 11. I (not be) …………………… at work tomorrow ,I’m taking the day off.2 12. How long …………… you (be ) …….. a nurse, Mss Lan? For 5 years. 13. While Peter (drive) ………….…….… home late last night he (run) ……………….… out off the petrol. 15. She always (get) ……………………… up early to study her lessons. 16. Nylon (invent) ………….. in early 1930s by an American chemist, Julian Hill. Other scientists (work) ……….. with his invention and finally on 27 Octorber 1938, nylon (introduce)….………….. to the world .It was cheap and strong and immediately (become) …………….. successful, especial in making old ladies’ stockings. During the Second World War , it (use) …………….. to make parachutes and tyres. Today, nylon (find) ……………….. in many things: carpets, ropes, seat bells, furniture, computers and event space parts for the human body. It ( play ) …….……….. an important part in our lives for over 50 years. Next year, about 2.6 million tons of nylon (manufacture) ……………

(x+3)^3-9x(x-3) Giải giúp em ạh cảm ơn mn

Chỉ cần ghi KQ thôi ạ Hứa đánh giá tốt, cảm ơn và người đầu tiên trả lời hứa sẽ bình chọn đáp án tốt nhât

giúp mình với , help me: 1. I sometimes fly _____ kites in the summer. A. he B. his C. their D. my 2. He usually goes ______ in the winter. A. to jog B. jogging C. joging D. jogs 3. What’s the _______ like in the fall? 5 A. seasons B.weather C. sport D. free time 4. It’s usually _____ in the summer. A. cold B. cool C. hot D. warm 5. Which sports do you _____ ? A. play B. have C. do D. read 6. What about __________ by bike? A. go B. goes C. to go D. going 7. Hoa and Lan ________ their grandfather and gradmother tomorrow? A. sees B. is going to see C.see D. are going to see 8. Ho Chi Minh City is _______ than the capital. A. big B. small C. bigger D. the biggest 9._____ do you watch TV? Twice a day. A. How long B. How often C. How D. How many 10. ____ there any newspapers on the desk ? A. Is B. Do C. Are D. Have 53. He ______ brown eyes . A. is B. has C. have D . don’t have

Cíu :>> Trình bày dễ hiểu nheaa Đề: Rút gọn biểu thức

Hợp chất X được tạo bởi nguyên tử M với nguyên tử nitơ là M3N2 có tổng số hạt cơ bản là 156,trong đó tổng số hạt mang điện hơn số hạt không mang điện là 44. tìm công thức phân tử của X

viết một bài văn về cách để giới trẻ hiện nay tránh khỏi stress MIK CẦN GẤP NHA

vt calli:senju akashi nl:ny tui nè

Cíu :>> Camon nhiều Yc: trình bày dễ hiểu hộ

Câu 1: Trong các phản ứng sau, những phản ứng nào đúng (có xảy ra): a. 2NaHSO4 + BaCl2 → Ba(HSO4)2 + 2NaCl b. 2NaHSO4 + BaCl2 → BaSO4 + Na2SO4 + 2HCl c. NaHSO4 + BaCl2 → BaSO4 + NaCl + HCl d. 4NaHSO4 + BaCl2 → Ba(HSO4)2 + 2Na2SO4 + 2HCl Câu 2: Trong các phản ứng sau, những phản ứng nào đúng (có xảy ra): a. Mg(HSO4)2 + 2NaOH → Mg(OH)2 + 2NaHSO4 b. Mg(HSO4)2 + NaOH → NaHSO4 + MgSO4 + H2O c. Mg(HSO4)2 + 2NaOH → Na2SO4 + MgSO4 + 2H2O