1. Let the music _______. A. playing B. be played C. play D. played 2. The boy __________. A. was punished by the teacher yesterday B. was punished yesterday by the teacher C. is punished by the teacher yesterday D. has been punished yesterday by the teacher 3. An email _________ his secretary by the boss last night. A. is sent to B. was sent to C. is sent for D. was sent for 4. David appears ________ some weight. Has he been ill? A. having lost B. having been lost C. to have lost D. to have been lost 5. Tom made a serious mistake at work, but his boss didn’t fire him. He’s lucky ________ a second chance. A. having given B. having been given C. to have given D. to have been given 6. The floor __________. A. was being cleaned by my mother at the moment B. is being cleaned by my mother at the moment C. has been cleaned at the moment by my mother D. is being cleaned at the moment by my mother 7. The garden needs _________. A. weedding B. to be weeded C. to be weeding D. to weed 8. His car needs _________. A. be fixed B. fixing C. to be fixing D. fixed 9. That book _________. A. is bought yesterday by John B. was bought by John yesterday C. was bought yesterday by John D. is bought by John yesterday 10. Let the work ________. A. been finished B. be finish C. be finished D. being finished 20. Many watches are manufactured by ________ in Switzerland. A. no one B. people C. everybody D. a company

Gọi k là một điểm thuộc đoạn thẳng GD.Biết GK = 3cm,KD= 7 cm.Tính độ dài đoạn thẳng GD.

Giúp với mấy anh cj giỏi anh ơi 2h e nộp r ạ

she/get/up phòng truyền thống ở đâu vậy mọi người

Mình chỉ cần đáp án thôi không cần lời giải thích đâu :)) Thanks <3

Câu thớ trên đó là "Cảnh khuya như vẽ người chưa ngủ Chưa ngủ vì lo nỗi nước nhà" Mọi người giúp mình với ạ❤️ Cảm ơn mọi người nhiều ạ❤️🙆

Giúp mik nha mik đag cần gấp làm ơn điiiii :'(

Cho e hỏi chất này có phải là este ko ạ , giải thích vì sao OHCH$_{2}$ CH$_{2}$COOC $_{3}$H $_{4}$

Ở một loài thực vật, A - thân cao trội hoàn toàn so với a - thân thấp; B - hoa đỏ trội hoàn toàn so với b - hoa trắng. Mỗi cặp gen nằm trên 1 cặp NST tương đồng khác nhau. Cho cây thân cao, hoa đỏ dị hợp các cặp gen tự thụ phấn được F1. Cho các nhận định sau đây về F1 (1). Trong số các cây thân cao, hoa đỏ, cây đồng hợp chiếm tỷ lệ 1/9 (2). Tỷ lệ câu mang 1 tính trạng trội chiếm tỷ lệ 37,5% (3). Nếu cho các cây thân cao, hoa đỏ F1 giao phấn với nhau, tỷ lệ đời con mang 2 tính trạng lặn chiếm tỷ lệ 1/81 (4). Trong số các cây thân cao, hoa đỏ tỷ lệ các cây khi tự thụ phấn cho đời con đồng loạt giống nhau chiếm tỷ lệ 1/9 Số khẳng định đúng là 1,2,3 e lm rồi ạ Cần 4 thôi ạ

VII.Combine a clause in column A with a clause in column B to make complex sentences. A 1. Before I have breakfast, 2. They were talking 3. Although he worked very hard, 4. Since Joe has high blood pressure, 5. Never look down on anybody 6. After he finished his homework, 7. When he finished his degree, 8. George was obviously in a bad mood, 9. He’ll be able to maintain a healthy weight 10. Whenever they eat at this restaurant B a. his parents let him play video games. b. Matt got a job in a software company. c. because he didn’t even say good morning. d. unless you’re helping him up. e. they order a hamburger and fries. f. if he keeps exercising. g. he has to watch what he eats. h. he didn’t manage to pass the exam. i. I spend half an hour doing exercises. j. while the teacher was explaining the lesson VIII. Combine each pair of sentences using the conjunction in brackets. 1. The world is getting warmer. Polar bears are in danger of becoming extinct. (because) _______________________________________________________________________ 2. There weren’t enough students. They closed the village school. (as) _______________________________________________________________________ 3. I really enjoyed the concert. The music was too loud. (although) _______________________________________________________________________ 4. He got a creampie smashed in his face. Everyone laughed. (when) _______________________________________________________________________ 5. Paul was walking to the bus stop. He found somebody’s wallet on the ground. (while) _______________________________________________________________________ 6. Jackie will take out the trash. She is done with her chores. (after) _______________________________________________________________________ 7. You study for the test. You will do much better. (if) _______________________________________________________________________ 8. Rex practiced his guitar. He could play the song perfectly. (until) _______________________________________________________________________ 9. We could get back to shore. It started to rain hard. (before) _______________________________________________________________________ 10. I saw him. He was always carrying a plastic shopping bag. (whenever) ______________________________________________________________________