Câu 9. Có thể hòa tan được các dung dịch sau không? (Phải hòa tan những muối nào, bao nhiêu mol): a. D.dịch A chứa: 0,04 mol Fe3+; 0,02 mol NO3– ; 0,01 mol Cu2+.

a: (4x-10)(24+5x)=0 b: (x-1)(5x+3)=(3x-8)(x-1)

Exercise 8. Read the following passage and mark the letter A. B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks. A YEAR WITH OVERSEAS VOLUNTEERS I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 kilometres from the capital N'Djamena. Coming from a (1) ____ country, I got quite a shock, as conditions were much harder than I had expected. But after a lew days I got used to (2) ____ there. The people were always very friendly and helpful, and I soon began to appreciate how beautiful the countiyside was. One of my jobs was to supply the village (3) ____ water. The well was a long walk away, and the women used to spend a long time every day (4) ____ heavy pots backwards and forwards. So I contacted the organisation and arranged to have some pipes delivered. (5) ____ these pipes were not really perfect, they still made a great difference to the villagers. All in all, I think my time with OV was a good experience. Although it was not paid, it was well worth doing and I would recommend it to anyone (6) ____ was considering working for a charity. 1. A. rich B. comfortable C. well-paid D. luxurious 2. A. lived B. living C. lived D. lively 3. A. for B. on C. with D. from 4. A. carrying B. wearing C. holding D. drinking 5. A. If B. Because C. When D. Although 6. A. which B. when C. where D. who

Giúp mik làm bài V với V : là điền dạng so sánh của tính từ trong ngoặc.

Exercise 7. Use so, and, but, yet, or, nor, for to connect sentences 1. My family really loves Japanese food, ____ we order it twice a week. 2. These games are challenging, ____ it’s not easy to spend little time playing them. 3. Smoking is extremely detrimental to health, ____ many people continue to smoke anyway. 4. We were lost in the forest, ____ luckily my friend had a map in his backpack. 5. Would you like a cup of milk tea ____ a cup of hot chocolate after dinner? 6. Minh had his teeth decayed, ____ he refused to see the dentist. 7. Anna thinks she ought to go to the university, ____ she wants to get qualifications for her dream job. 8. He invested a lot of money in this business, ____ it went bankrupt in a very short time. 9. The students didn’t revise for their exams, ____ did they realise how important the exams were. 10. Peter wonders he should stay home and watch TV, ____ he should go out and have dinner with his friends.

xác định lỗi sai trong các câu sau và sửa lại cho đúng a. con mèo nhà em rất đẹp nên em rất thích con mèo nhà em b.ông họa sĩ già nhấp nháy bộ ria mép quen thuộc c. ngôi nhà kia được xây rất kiên cườg

trả lời giúp mình câu 5 và câu 7 với ngắn gọn thôi nha

Exercise 6. Give the correct form of the verbs in brackets 15. That Hoa ____always____ in class affects other students around. (talk) 16. Hoang and Phong ____ football as they’re having class now. ( not/ play) 17. Hoa usually ____ charge of doing the washing-up in her family. (take) 18. Our friends ____ for the fashion show now. (prepare) 19. Listen! There's someone at the door. I ____ the door for you. (open) 20. “Look at those dark clouds!“ - “Yes, it ____ in some minutes.” (rain) 21. Although I have taken some aspirin, the headache ________ away. (not/ go) 22. On Sunday at 8 o‘clock I ____ my friend. (meet) 23. Wait! I ____ you to the station. (drive) 24. I ____ my sister in April as planned. (see) 25. Perhaps I ____ New York one day. (visit) 26. What time ___you ____________ tomorrow? (leave) 27. Who ____ the next World Cup? (win) 28. John made me ____ a lot with his hilarious jokes. (laughing) 29. I’d like ____ all of you to enjoy my party on this Friday. (invite) 30. We expect Linh ____ to the airport late as the plane will take off in 15 minutes. (not/ come) 31. I’m happy ____ that you’ve passed your driving test. Congratulations! (hear) 32. My mother said that she would rather ____ to Hoi An than Nha Trang. (travelling) 33. I allow my little daughter ____ with her friends in the flower garden. (play) 34. You’d better ____ out with your friends as it is very dangerous in the evening. (going) 35. My parents let my sister ____ camping with her friends in the mountain. (going) 36. We intend ____ him the truth for fear that he’ll fly into a fit of madness. (not/ tell)

Help me help me please, tớ cần gấp, xin các câu đấy.😭😭@linhnguyendieu @lẽuanphuong. Mai cô ttows kiểm tra rùi Please help me.

Exercise 6. Give the correct form of the verbs in brackets 1. Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region. (bring) 2. I ____ Maria for the first time at the Heart-to-Heart Charity Office. (see) 3. We ____ the roof for Mrs. Smith, an elderly childless woman, when it ____ with rain. (mend / pour) 4. When we were on a voluntary tour, we ____ to public places to collect rubbish every day. (go) 5. The phone was engaged when I called. Who __you__ to? (talk) 6. We ____ in silence when he suddenly ____ me to help him. (walk / ask) 7. I ____ my report when my boss ____ the hall. (make / enter) 8. I ____ near the fence when suddenly I ____ the voices. (stand / hear) 9. Jim ____ his leg when he ____ golf. (break / play) 10. While I ____ for him to call up, he ____ a good time in the bar. (wait/ have) 11. Hoang ____ his email four times a week in order not to miss anything important. (check) 12. At the moment, my sister ____ her homework, my brother ____ games. (do/ play) 13. It’s 7.00 p.m. now and we ____ meal together. We usually ____ dinner at that time. (have/ eat) 14. I ____ a bike to school every day but today I ____ to school by bus because it was stolen yesterday. (ride / go) 15. That Hoa ____always____ in class affects other students around. (talk)