Một vật dao động điều hoà theo phương trình x=3sin(πt+π/2) cm Tại thời điểm nào thì vật có li độ là 3√2/2 và chuyển động theo chiều dương lần 1 và 2

III. Choose the best answer among A, B, C or D that best completes each sentence. 5. ________are those who do not have a home and really need help. A. elderly people B. sick children C. homeless people D. disabled people 6. She often _______money to charitable organisations. A. donate B. volunteer C. recycle D. plant 7. I think I_______him before. A. meet B. met C. will meet D. have met 8. When I was a little girl, I often_________ the piano. A. play B. played C. plays D. have play 9. Eat______junk food. It makes you fat! A. less B. fewer C. more D. many 10. I have temperature,____I feel tired. A. and B. or C. but D. so 11. She looks very red. She was outdoors all day yesterday. I think she has __________. A. sunburn B. headache C. toothache D. flu 12. My grandparents _____exercise in their free time. A. play B. collect C. go D. do 13. If you always buy flowers and put them in a vase to display in your house, your hobby is ________. A. collecting flowers B. arranging flowers C. planting trees D.bird-watching 14. They hate ________noodles. They prefer rice. A. eating B. eat C. eats D. ate 15. I find this hobby________because carved eggshells are unique gifts for families and friends. A. interest B. interested C. to interest D.interesting 16. Go Greens _________the environment. A. gives B. protects C. donates D. recycles

Hướng dẫn mik calli w, x, y, z giống kiểu pic dưới

I. Choose the word that has the underlined part pronounced differently from the others. 1. A. go B. photo C. piano D. collect 2. A. watch B. catch C. school D. teach II. Choose the word which is stressed differently from the others. 3. A. temperature B. stomachache C. adult D. advice 4. A. recycle B. benefit C. provide D. encourage

Hướng dẫn mik calli p, q, r, s, t, u,v giống kiểu pic dưới

có tất cả 28 con vật gồm cả gà và thỏ trong một nông trại. Tổng số chân của chúng là 72 chân. Hỏi có bao nhiêu con gà

Task 8. Viết lại câu không thay đổi nghĩa 1. The room is so tidy that it took us one hour to clean it.⇒ It is .... 2. The man is so fool that no one took any notice of him.⇒ He is .... 3. The film is so long that they can't broadcast it on one night.⇒ It is ..... 4. The books are so interesting that we have read them many times.⇒ They are..... 5. The news was so bad that she burst into tears on hearing it.⇒ It was.... 6. The food was so hot that it turned my tongue.⇒ It was..... 7. There is so much rain that we can't go out.⇒ There is such.... 8. The boy is so fat that every calls him Stuffy.⇒ He is .... 9. The milk is so excellent that all the children want some more.⇒ It is .... 10. The weather was so warm that they had a walk in the garden.⇒ It was....

Task 7. Combine each of the following pairs of sentences into one sentence using too/enough with infinitive. 1. You are very young. You can't have a front-door key. 2. It is very cold. We can't bathe. 3. Would you be very kind and answer this letter by return? 4. I am rather old. I can't wear that kind of hat. 5. The ladder wasn't very long. It didn't reach the window. 6. He hadn't much money. He couldn't live on it. (Omit it.) 7. He was furious. He couldn't speak. 8. The fire isn't very hot. It won't boil a kettle. 9. Tom was very foolish. He told lies to the police. 10. You are quite thin. You could slip between the bars.

Giups mình với chỉ cần làm bài 1 thôi nhanhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhbhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Calli : Hoidap247 Nl : Mừng hoidap sinh nhật 2 tuổi <3