bài `II` ; `IV` ; `VI` ; `VII` Cố giúp mik nhé!

Hoà tan 11 gam hỗn hợp Al , Fe trong dung dịch H2SO4 loãng thu được 8,96 lít khí H2 ( đktc) nếu hòa tan 5,5g hỗn hợp này trong dung dịch H2SO4 đặc dư thu được lượng khí SO2 là

, Supply the correct forms of the verbs. Use these modals in the main clause: can, could, may, might, should, ought to, or must. Alternatives are possible. 1. If you 2. If you (not understand/ help) your glasses. (want/ wear) to see clearly, you the lesson, I you with your homework. no. still ill tomorrow, she your bike ifI early if he at home. (be/ stay) it carefully. (borrow/ ride) to get to Montevideo on time. 3. If Jane 4. 5. Mark (leave/ want) coming tonight, he strong enough, we 6. If he next week. (not be/ come) 7. If the wind sure. (be/ go) sailing, but I''m not 8. You your baby to the doctor's if his temperature up again. (take/ go) 9. If you work early, you a video recorder, he for a drink with us. (finish/ come) 10. If Jack he wants. (have/ record) any programme

Describe your idea of a ideal house ( đoạn văn từ 80-100 từ)

chứng minh rằng tam giác ABC đều khi và chỉ khi a^2 + b^2 + c^2 = 36r^2

. Ở một dòng tự thụ phấn bắt buộc, gen trội A quy định thân cao, gen a quy định thân thấp. Thế hệ xuất phát có tỉ lệ kiểu gen: 50%AA : 50% Aa. Tính tỉ lệ cây thân cao ở thế hệ thứ 5?

Mik cần gấp nhé tối nay phải nọp rồi mong các bạn giúp đỡ mình vote 5 sao nhé

B. Read the text carefully, then choose the correct answer a, b, c, or d. Britain is now a highly industrialized country and there are only 238,000 farms in the UK. More and more farmers leave the land because they can not earn enough money to survive. Only large farms are economic and because of this most British farms are big. The small family farms often have to earn more money by offering bed and breakfast accommodation to tourists. Farming methods in Britain have also changed. Fields used to be quite small, divided by hedges which were sometimes a thousand years old and full of wild flowers and birds. Many hedges were pulled up to allow farmers to use modern machinery. Now most fields in England are large by European standards. 9. British farmers give up farm work because they a. are tired of the farm work c. want to leave for the city 10. Most British farms are big because a. there are plenty of land c. small farms are uneconomic 11. The small family farms often offer bed and breakfast accommodation to tourists in order to a. show their friendship c. build up some savings 12. Fields on British farms used to be a. separated from each other by hedges b. full of wild flowers and birds c. a thousand years old 13. Nowadays most fields in England are a. planted by European c. larger than fields in Europe b. cannot earn their living by farming d. are forced to leave the land. b. farming is now industrialized d. most British farmers are rich 1. b. attract more tourists to their farms d. improve their earnings d. all are correct b. smaller than they used to be d. large by European standards V. SPEAKING Choose the sentence or phrase (a, b, c, or d) that best fits the blank space. 1. May I use your phone?" 'Certainly. a. Hold on, please. c. Here you are. b. It doesn't matter. d. You're welcome. 2. Would you like to have tea with us?" a. Yes, I'd love to. c. That's a good idea. b. Yes, I would. d. I think so. I'm going to make a table. b. What's this wood for? d. Whose is this wood? a. Why is this wood? c. How is this wood used? 4. "Excuse me, where is the post office?" a. Let me see. b. About two hundred meters. d. Keep straight on for one mile. c. Twenty minutes walk.

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Vẽ ciel phantomhive Ai ship cặp Sebastian x ciel không Ngoi lên khoe góc học tập chút thôi