1. Prepare the lesson carefully or you will get bad mark. (Inversion) ___________________________________________________________________________ 2. Mix blue and yellow, you get green. ___________________________________________________________________________ 3. Hurry or you'll be late for school. (Unless) ___________________________________________________________________________ 4. I don’t know Korean so I couldn’t talk to Koreans. (Inversion) ___________________________________________________________________________ 5. You can use my car but you must drive carefully. (As long as) ___________________________________________________________________________ 6. I don't win a lot of money, so I can't spend most of it travelling round the world. ___________________________________________________________________________ 7. I am short; that's why I won't be a pilot. ___________________________________________________________________________ 8. If I were you, I would eat less. (inversion) ___________________________________________________________________________ 9. I didn't tell her any good news because I wasn't here. ___________________________________________________________________________ 10. I was wearing a seat belt, so I didn't have a bad accident. ___________________________________________________________________________ 11. He isn't a rich man now because he didn't take my advice. ___________________________________________________________________________ 12. Last night I had an accident because I wasn’t careful. (Inversion) ___________________________________________________________________________ 13. You help me so I can finish my work. ___________________________________________________________________________ 14. She encouraged him and he succeeded. (But for) ___________________________________________________________________________ 15. The teacher explained and we understood. (without) ___________________________________________________________________________ 16. Travelling by car is convenient in case you have somewhere to park. (Providing) ___________________________________________________________________________ 17. She must study hard to pass the exam. (Provided) ___________________________________________________________________________ 18. The meeting can be cancelled because it snows heavily. (Inversion) ___________________________________________________________________________ 19. Robert got a bad cough because he started smoking cigarettes. (Inversion) ___________________________________________________________________________

1. This/ be/ first/ time/ I/ write/ lover. 2. Her father/ work/ engineer/ since 1990. 3. He/ able/ drive/ since/ 18. 4. You/ visit/ Buckingham Palace/ yet? 5. It/ most enjoyable/ concert/ they/ ever/ be. 6. I/ never/ taste/ such/ delicious cake. 7. It/ the first time/ I/ ride/ camel. 8. Since/ his wife/ die/ 1978/ Charles/ live/ alone. 9. They/ send/ text messages/ friends/ yet? 10. This/ best/ party/ I/ ever/ be to.

Câu 1 pH của dung dịch thu được khi hòa tan 8g NaOH vào 500ml dung dịch Ba(OH)2 0,01M là? Câu 2 trộn a mol H2SO4 với b mol KOH thì thu được dung dịch làm quỳ tím hóa đỏ. Chọn : a. a<b<2a b. a>b c. b>a d.2a>b

Đề: hoàn thành phương trình phản ứng sau

11. They waited ___ in long queues. A. patient B. patience C. patiently D. impatient 12. He rescued a child ___ drowning. A. from B. off C. on D. with 13. It ___ 2 years since I last saw Joe. A. was B. has been C. is D. B & C 14. A truck went out of control and ___ into the back of a bus. A. fell B. went C. took D. crashed 15. Have you written your assignment ___? A. yet B. just C. still D. ever 16. Would you mind ___ me a lift home from school? A. taking B. driving C. giving D. making 17. She was the daughter of Chinese ___ to America. A. immigrate B. immigrants C. immigration D. immigrated 18. don’t you come to my house? – OK. Let’s go. A. Why B. Let’s C. What D. How 19. Which of the following words is different from the others? A. hospital B. school C. restaurant D. building 20. The summer vacation for almost three months. A. longs B. lasts C. is D. has 21. anyone else about my problem yet. A. I haven’t told B. I’m not telling C. I didn’t tell D. I don’t tell 22. My granny that detective novel. A. has already read B. has yet read C. readed D. is reading 23. There a lot of changes in Vietnam since the 1990s. A. was B. have been C. has been D. are 24. My dog my cat since I came home. A. is chasing B. has chased C. chased D. chases 25. It’s a great movie. I have that movie many times. A. have saw B. have seen D. saw D. seen 26. Have you really strange or interesting food? A. eat B. ate C. never eaten D. ever eaten 27. your brother talked to you yet? Yes, he . A. Has / did B. Have / have C. Has / has D. Did / have 28. My family and I to many different countries around the world. A. have flown B. has flown C. flew C. flow 29. Have you finished answering all the questions ? A. yet B. over C. never D. ever 30. Either Mrs. Chen or the girls the hen-house. A. has washed B. have washed C. is washing D. are washed

Giúp mình với, mình đang cần gấp

Cho 2 số nguyên dương a, b. Có bao nhiêu số nguyên tố trong đoạn [a, b]. Dữ liệu nhập: - Dòng đầu tiên ghi số k là số các đoạn [a, b] - Tiếp theo là k dòng mỗi dòng ghi 2 số a, b. Kết quả: - Gồm k dòng, dòng thứ i ghi một số là số các số nguyên tố trong đoạn [a, b] thứ i đã cho. Ràng buộc: - 1 ≤ a ≤ b ≤ 1.000.000 - 1 ≤ k ≤ 100 Yêu cầu :sử dụng sàng số nguyên sô + prefix sum Ví dụ input 1 1 5 output 3 Mn giúp vs,em cần gấp ạ

I. Choose the word in each group that has the underlined part pronounced differently from the rest. 1. A. southern B. within C. although D. growth 2. A. technology B. lunch C. kitchen D. purchase 3. A. ocean B. official C. sincere D. ancient 4. A. eleven B. elephant C. examine D. exact 5. A. assure B. pressure C. possession D. assist II. Choose a word in each line that has different stress pattern. 6. A. reserve B. receive C. rescue D. remain 7. A. success B. luggage C. journey D. helicopter 8. A. enormous B. comfortable C. expensive D. convenient 9. A. immigrant B. criminal C. ancestor D. descendant 10. A. German B. Brazilian C. Italian D. American

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