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Li có tác dụng với H2 và S không

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PTHH:Li+H2to→2LiH

2Li+Sto→Li2S

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Put the verbs in the right tense or form. 1. Did you use to …………………… ( play ) tennis last year? 2. He wishes he …………………… ( can ) speak Japanese . 3. Are you used to …………………… ( learn ) your lesson early in the morning ? 4. I wish I …………………… (have) a car. It would make life so much easier. 5. She wishes she …………………… ( know) her address now . Giải thích

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Chỉ ra tất cả từ loại có trong các câu sau: a)Quê hương là chum khế ngọt, Cho con trèo hái mỗi ngày b) Làng tôi ở vốn làm nghề chài lưới Nước bao lâu cách biển nửa ngày sông Mn giúp mình với ạ

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Làm ơn giúp mik ạ I.Choose the word which has underlined part is pronounced differently from the others. 1. A. chores B. dishes C. houses D. coaches 2. A. laughed B. stamped C. booked D. connected 3. A. lively B. style C. poetry D. symbol 4. A. about B. found C. bought D. south 5. A. teacher B. scholarship C. chair D. chess II. Circle the best option ( A, B, C or D) to complete each sentence 1. I don’t have a car. I wish I ________one. A. have B. didn’t have C. had D. wouldn’t have 2. Many students enjoy ________videogames. A. to watch B. watching C. watch D. to watching 3. The church _________ about 100 years ago. A. was built B. is built C. has been built D. will be built 4. He can’t get home______he has a ticket. A. if B. until C. unless D. without 5. It’s so hot . Why don’t we go swimming ? ________ A. Yes, we do B. No, we don’t C. That’s a good idea. D. Yes, thanks 6. He asked her __________ A. when she leaves the party. B. when did she leave the party. C. when does she leave the party. D. when she left the party 7. The journey to the village is very _______________ A. interested B. interesting C. uninterested D. interest 8. We should follow the traffic rules strictly, ________ ? A. shouldn’t we B. don’t we C. should we . D. should not we 9. The woman _______ lives next door is both my neighbor and a colleague of mine. A. which B. where C. whom D. who 10. He is tired ________ he stayed up late watching TV. A. so B. because C. but D. and III. Choose the words or phrases that are not correct in Standard English and correct the mistakes. 1. Every student in my class are good at English. -> ……………. 2. He studied very hard, so he passed the exam easy. -> ……………. 3. He said that he has done his homework since 7 o'clock. -> ……………. 4. The boy which was given the first prize in the contest was very happy. -> ……………. 5. Despite my father is old, he still goes to work. -> ……………. IV. Give the correct form of the verbs: 1. We (not see)......................Nga since Monday. 2. Do you mind(tell)....................me her address? 3. The letter I (receive)......................yesterday is on the desk. 4. A new bridge (build)...........................in my village next month. 5. I (learn).......................French at the moment,but I have not spoken it very well yet.

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Một tam giác có chiều cao bằng 4/5 cạnh đáy nếu chiều cao giảm 6m và cạnh đáy giảm 5m thì diện tích Tam giác giảm 40m2 . Tính chiều cao và cạnh đáy của Tam giác

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Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

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Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

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Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

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