Kéo một vật trượt đều trên mặt phẳng nằm ngang, biết lực kéo là 95N, quãng đường dịch chuyển là 20m. Tính lực ma sát trong trường hợp này nếu công có ích là 1600J

Đặt một câu rút gọn về cuộc đối thoại ngắn khoảng 3- 5 câu

Choose the best answer to complete each of the following sentences

trong thí nghiệm co và phản co nguyên sinh của tế bào thực vật , thành phần cấu trúc nào của tế bào đóng vai trò chính trong quá trình đó . tại sao

tập đoàn vôn vốc đánh dấu gì ?????????????? nớ là chỉ đahs dấu ai đngs ngắn mình cho 5 sao

11.……………Mrs Thoa was tired, she helped her children with their homework. A. If B. And C. Or D. Although 12.They arrived in Ho Chi Minh city ……….. Monday morning. A. in B. On c. at D. To 13.I thanked the man ……………..helped me move the fridge. A. Whom B. Who Whose which 14.You don’t like this film, …………..? A. do you B. don’t you C. are you D. doesn’t you 15.If I were you, I ………… ask the doctor for advice. A. can B. will C. must D. would

Supply the correct form of verbs tin the brackets to complete the sentences below 1) If it (rain) ...... tomorrow ,we (postpone) ...... the picnic. 2) He is old enough (drive) ...... a motorbike. 3) I hope he ( finish) ...... his homework before (go) ...... to school. 4) It is not easy (make) ...... friends with her. 5) After 3 days of rains, i glad the sun (shine) ...... again to day 6) My mom hates (get) ...... up early 7) When my sister and i (tobe) ...... small, we ate a lot of sweets 8) They (not find) ...... the keys so far

Giải giúp mk câu d, với mk cần gấp!

diem kt mon toan cua mot nhom hs tb la 7,0.trong do co 6 em dc diem 5,5 em dc diem 6,5 em dc diem 8,so con lai dc diem 10.hoi co bao nhieu em dc diem 10?

Choose the best answer A, B, C or D to complete the sentences. 1. We ____ him since he ____ married. A. didn't see/got B. haven't seen/got C. don't/get D. hadn't seen/got 2. I ____ the money yet. A. not received B. didn't receive C. haven't received D. hadn't received 3. Today is Thursday and she ____ late twice this week. She ____ late yesterday and on Monday. A. is/was B. has been/is C. has been/was D. has been/had been 4. We ____ what to do with the money yet. A. not decide B. didn't decide C. haven't decided D. hadn't decided 5. My father ____ as a teacher for almost thirty years. A. works B. is working C. worked D. has been working 6. He ____ to New York at least three times this year. A. had been going B. was going C. has been going D. is going 7. They ____ to know each other for more than ten years. A. get B. got C. have got D. had got 8. She ____ dishes already. A. was washing B. washed C. has washed D. has been washing 9. I ____ you for ages. A. haven't been meeting B. didn't meet C. wasn't meeting D. haven't met 10. Tom is still watching television. He ____ television all day. A. has been watching B. was watching C. has watched D. watched 11. A Bachelor's degree is a three-year or four-year course you take in undergraduate higher education after you ____ further education. A. has finished B. had been finishing C. have finished D. have been finishing 12. At most institutions in the UK, the ____ starts in September or October and runs until June or July. A. leap