giúp mình câu c,d bài 7 và bài 8 nha( câu c bài 8 làm hay ko cũng đc ạ)

Tìm n thuộc Z biết rằng : (2n+16) chia hết (n+7)

19. I don’t understand this sentence. What…………………….? A-does mean this word                                         B-have this word mean C-means this word                                              D-does this word mean 20. John……..tennis once or twice a week. A-usually play B-is usually playing C-usually plays D-have usually played 21. Since…… , I have heard nothing from him. A-he had left B-he left C-he has left D-he was left 22. Columbus……. America more than 400 years ago. A-discovered B-has discovered C-had discovered D- have discovered 23. We ………Doris since last Sunday. A-don’t see B-haven’t seen C-didn’t see D-hadn’t seen 24. The man got out the car ,………round to the back and opened the boot. A-walking B-walked C-walks D-walk 25. Ted and Amy……for 24 years. A-have been married B-married C-were married D-has been married

VII. Write the sentences with the cue words. 1. I/ going to / visit Ha Long Bay/ summer vacation.=>…………........................... 2. It/ cool/ fall.=>…………............................................. 3. Where / you/ from?=>…………..................................................... 4. Ho Chi Minh City / big/ Ha 5. Mexico City / big city/ world.=>………….............................................

Giúp mình với ạ :3 Làm hết luôn nhé ạ !

Đồng nitrat bị phân hủy theo sơ đồ phản ứng sau: Cu(NO3)2 to→ CuO + NO2 + O2 Nung 15,04 gam Cu(NO3)2, sau một thời gian thấy có 8,56 gam chất rắn. Tính thành phần trăm về khối lượng Cu(NO3)2 đã bị phân hủy.

Bài 4. Tổng số bàn thắng trong vòng bảng của một đội tuyển bóng đá trong 25 mùa giải được thống kê trong bảng sau Số bàn thắng ( x ) 2 3 4 5 6 8 9 Tần số ( n ) 4 5 4 7 2 2 1 25N a) Số bàn thắng trung bình trong một mùa giải là bao nhiêu? b) Tìm mốt của dấu hiệu.

Vì sao CMCN lại diễn ra ở Anh sớm hơn các nước khác khoảng 100 năm ? Máy hơi nước ra đời có ý nghĩa gì ?

10 Choose the best answer A, B, C or D to complete the sentence. Question 7: Robots in our home will do all the housework for us, and ______will become lazy and inactive. A: because B: therefore C: so D: as 11 Choose the best answer A, B, C or D to complete the sentence. Question 11: Air pollution, together with littering has _______many problems in our big cities today. A: bought B: caused C: affected D: made 12 Choose the best answer A, B, C or D to complete the sentence. Question 9: Water pollution in the lake has made the fish _______. A: dying B: die C: died D: to die 13 Combine two sentences into a new one, using the words in brackets. Do not change the given words in any way. Write the new sentences on your answer sheet. Question 24. It’s no good being impatient with small children. (should) A: We have to be patient with small children. B: We should be patient with small children. C: We ought to be patient with small children. D: We must be patient with small children. 14 Combine two sentences into a new one, using the words in brackets. Do not change the given words in any way. Write the new sentences on your answer sheet. Question 22. Nick: “ I like watching films on science and technology.” (said) A: Nick said that he would like watching films on science and technology. B: Nick said that he likes watching films on science and technology. C: Nick said that he liked watching films on science and technology. D: Nick said that he had liked watching films on science and technology. 15 Choose the word whose underlined part is pronounced differently from the others. A: precise B: enormous C: explore D: engine 16 Choose the best answer A, B, C or D to complete the sentence. Question 12: Neil Armstrong, the first man to walk on the moon, is one of the greatest _____. A: explorers B: exploring C: exploration D: explore 17 Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Question 16. The famous inventor was not brought up in a well-off family. A: kind B: poor C: wealthy D: rich 18 Choose the underlined part A, B, C or D that needs correcting. Picture 3 A: A B: B C: C D: D 19 Combine two sentences into a new one, using the words in brackets. Do not change the given words in any way. Write the new sentences on your answer sheet. Question 23. Our life will be better because of new inventions. (make) A: New inventions will do our life better. B: New inventions will keep our life better. C: New inventions will turn our life better. D: New inventions will make our life better. 20 Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Question 13. “Would you pick the kids up from school this afternoon?” “__________” A: No, I am afraid I can’t. B: Really? C: Sure D: I don’t think so. 21 Choose the best answer A, B, C or D to complete the sentence. Question 10: Are all type of pollution harmful ______the health of humans and animals? A: with B: of C: for D: to

Câu 1: Trình bày các bộ phận của hạt và chức năng của từng bộ phận? ( 2đ) Câu 2: Căn cứ vào đặc điểm nào để phân chia các loại quả? Nêu đặc điểm và cho ví dụ các nhóm quả chính. (2 đ) Câu 3: Cho ví dụ một số cây Một lá mầm và Hai lá mầm. (2 đ) Câu 4: Vì sao trong nhà không nên để quá nhiều cây xanh? (2 đ) Câu 5: Vì sao nên nuôi ong trong các vườn cây ăn quả? ( 2đ) Câu 5: Sự bài tiết nước tiểu diễn ra như thế nào? Thực chất của quá trình tạo thành nước tiểu là gì? (2 đ)