Mình cần gấp! Các bạn nhớ cho mình lời giải và phép tính nữa nhe. Cám ơn các bạn rát nhiều!

I/ Trắc nghiệm: Chọn câu trả lời đúng nhất 1. The weather .................. nice yesterday. a. is b. was c. will be d. has been 2. It's difficult ................ your direction. a. to follow b. following c. to following d. followed 3. Would you mind .............. in the front of the Taxi, Mark? a. sit b. to sit c, sitting d. siting 4. The boy ................. over there is my brother. a. stand b. stood c. standing d. being stood 5. I was cooking for dinner ......................................... a. Then the phone rang b. then the phone was ringing c. When the phone rang d. when the phone was ringing. 6. The leader said that ................... to award the prize to you . a. He is pleasing b. he was pleasing c. he is pleased d. he was pleased 7. On Christmas Eve, people often ...................... a tree a. are decorated b, were decorated c. decorating d. decorate 8. He asked me .................................. a. Where I like coffee or not b, Whether I liked coffee c. What I liked coffee d, Which I liked coffee 9. What's was wrong with your printer? a. It didn't work b, It's doesn't c, It hasn't work d, It won't work. 10. The Statue of Liberty was ................. to the USA by the French. a. contructed b, designed c, completed d, presented II/ Đọc đoạn văn và làm các bài tập. The position with computer is very similar today. A few years ago, computers (1) .....................very large and expensive. Business managers and rich people ordered them but they (2) ..................... know how to use them. In many countries, however the situation (3) ..................... now completely changed. A lot of people not only own microcomputers but also know how (4) ...................... them. a. Chọn từ đúng cho mỗi chỗ trống 1, a. were b, are c, have been d, is 2, a, don't b, doesn't c, not d, didn't 3, a, has b, have c, had d, are 4, a, used to b, to use c, using d, used b Trả lời câu hỏi sau: 1. What were computers like a few years ago? .................................................................................................. 2. How about the computers now? .................................................................................................. III/ Viết lại các câu sau theo gợi ý: a, To go swimming is interesting It's .............................................................................................................. b, I kicked the ball in to the goal yesterday. The ball ......................................................................................................

giúp mình với b13, 14,16,17,18,19,20 bài 13: (a+4) chia hết (a-1) nha

Chờ tam giác ABC vuông tại A. Vẽ đường cao AH. Từ H dựng HN vuông với AC tại N, HM vuông với AB tại M. Trên tia đối của tia MH láy một điểm E sao cho ME = MH. Trên tia đối của MH láy một điểm F sao cho NF = NH. Chứng minh AEMN là hình bình hành, tứ giác AFNM là hình bình hành chứng minh ba điểm E.A.F thẳng hàng

Đề bài: Giải các phương trình sau: (Đặt ẩn phụ) a, (x^2+x)^2 + 4.(x^2 +x) - 12 = 0 b, (x^2+2x+3)^2 - 9.(x^2+2x+3) + 18 = 0 c, (x - 2) . (x+2) . (x^2-10) = 72 d, x . (x+1) . (x^2+x+1) = 42 e, (x-1) . (x-3) . (x+5) . (x+7) - 297 = 0 f, x^4 - 2.x^2 - 144x - 1295 = 0

kết luận nào sau đây là đúng : A. -(-2) = -2 B. - (-2) = 2 C. |-2| = -2 D. - |-2| =2

Chia động từ trong ngoặc. 1.If you ( go) __________away, please write to me. 2. If you ( be)__________ in, I should have given it to you. 3. If he (eat) __________another cake, he will be sick. 4. I ( not do ) __________ that if I (be) __________you. 5. If he (take) __________my advice, everything can go well. 6. I would have come sooner if I ( know)__________ you were here. 3 7. He never does homework. If he ( do)________his homework, he (not worry) _____ about his exam. 8.It’s too bad we lost the game. If you (play)_____for us, we( win)__________. 9.What you (do) __________if she refuses your invitation? 10. If today (be) __________Sunday, we (go)__________ to the beach. 11. Unless they (pass) _________their examinations, they would join the army. 12. You (be) __________ill if you drink that water. 13. If Tom (go)__________ to bed earlier, he would not be so tired. 14. Had we known your address, we( write) __________you a letter. 15. If it’s raining heavily, we (not go) __________for a donkey ride. 16. If he (try)__________ hard, he’ll pass the examination. 17. I could understand the French teacher if she (speak)_________ more slowly. 18.If she (not be)__________ busy, she would have come to the party. 19. If I (finish) __________the work in time, I ( go)_____to the football game. 20. If you( see) __________Mary today, please ( ask) ________her to call me.

Theo em, chúng ta cần phải làm gì để bảo vệ nền hòa bình cho nhân loại?

Bài 3. Trong các dòng dưới đây, dòng nào có các từ in đậm là từ nhiều nghĩa? a) thi đậu, hạt đậu, chim đậu trên cành. b) vàng nhạt, vàng hoe, vàng tươi. c) xương sườn, sườn núi, sườn đê. Bài 4. Dòng nào dưới đây có các từ in đậm đều mang nghĩa chuyển? a. chân trời, chân bàn, chân ghế. b. cánh buồm, cánh đồng, cánh chim. c. xương sườn, sườn núi, sườn xe đạp < nhớ có lờ giải thích nhé>

Giúp em câu số 9 và câu số 10 với ạ