(-25). ( -3). x với x = 4 (-1). (-4) . 5 . 8 . y với y = 25 (2ab2) : c với a = 4; b = -6; c = 12 [(-25).(-27).(-x)] : y với x = 4; y = -9 (a2 - b2) : (a + b) (a – b) với a = 5 ; b = -3

Phân tích cấu trúc cú pháp trong những câu sau?Cho biết đó là kiểu câu gì?Chỉ ra mối quan hệ ý nghĩa giữa các vế Trong từng câu? a)Người nách thước,Kẻ tay đao b)Đầu trâu mặt ngựa ào ào như sôi c)Choắt yếu đuối,Tôi coi thường gã,gã cũng sợ tôi lắm

1.Which word is different from the others ? a. amount b. advanced c. pagoda d. campus 2. Which word is different from the others ? a. course b. collection c. order d. dormitory 3.Choose the word whose main stress is placed differently from the others? a. advance b. blanket c. scholarship d. campus 4. We wish we ………………… in Ha Noi now . a. stayed b. would stay c. will stay d. could stay 5.We love to watch the stars ………………………. night. a. in b. of c. on d. at 6. I asked her ……………………… she liked to listen to music. a. whether b. that c. if d. a & c are correct 7. She did this exercise ……………………………. an hour. a. for b. since c. in d. at 8. Nam is sick today …………………. he won’t go on a picnic with us . a. if b. so c. because d. but 9.Nga wishes she ………………. visit her grandparents next month. a.could visit b.can visit c.visited d. visits 10.You can improve your English by………….listening English programs on the radio.. a.speaking b.saying c.talking d.practicing 11…………….he doesn’t come soon ,he ……………….the bus. a.When/ may not miss b.If / might miss c.If /might not miss d. When/ might miss 12..Miss Mai said ……………………………………. a.she loves these roses . b.he loved those roses . c.she loved those roses. d.he loves those roses. 13.They wish they ……………………. a new computer.. a.had b. wanted c.made d. did 14/I asked Nam…………………… video games. a.how much he played b. what he played c. what he played d.how often he played 15. .She asked me ………………..I went to school by bike a. how b.if c.whether d.b&c are correct 16..There is a……………………at the entrance to the village. a.old big banyan tree b.big old banyan tree c.old big banyan d.old banyan 17.. Mr Lam will have a meeting…………..7am…………………9am. a.up/to b. at/at c.from/ to d.until/to 18. My students worked hard…………….. they passed their exams. a.because b. however c.if d. so Ex 11 : Combine the sentences with “so” We didn’t like the food. We walked out of the restaurant. The place was beautiful. Liz wanted to go there again. Everyone was tired after the visit. They slept on the bus on the way home. There was fog . Their flight was delayed. The hotel was noisy. They couldn’t sleep. EX 13: Complete the sentences with a modal verb and the verb in bracket. If you go by bike , it ……………………… (take) a long time. You ………………………(get) up at six everyday if you want to join us. If you want to play out, you ……………………….(finish) all your homework. You………………………(wait) if you want to see him. If you want to be quick, you…………………………. (take) a lift. If you ask Jane, She ……………………….(be) able to do for you. If you want to pass the exam easily, You …………………..(study) hard. You ………………. (hurry) up if you want to get there on time. Ex15/ Which words is different from the others ? 1.a. blanket b. exchange c. gather d. hamburger 2.a. collection b. course c. order d. dormitory 3.a.comment b. experience c. intermediate d. scenery 4. a. campus b. amount c. advance d. pagoda 5. a. edition b. deposit c. reputation d. experience EX 16/ Choose the word that has the underlined part pronounced differently from the others. 1.a experience b. amount c. advance d. publish 2. a edition b. reputation c. intermediate d. inspiration 3. a blanket b. campus c. scholarship d. advance 4. a. institute b. dormitory c. scenery d. exchange 5.a. admire b. pagoda c. relax d. picnic EX17/ Supply the correct verb form . We wish it ( not rain ) …………………………… I wish I ( visit ) ………………… Ha Noi one day . They wish they (stay) …………………………..in Hue . You have (go) ………………… to university if you want to study medicine . She asked me where I (live )………………………………………. What aspect of (learn)………………………English do you find difficult. I asked them if they (pass) ……………………………the final exam. If he (not come )………………………..soon , he might miss the train. The students often (take)……………………..part in many activities at school. Miss. Hoa said she (will) …………… live in Ho Chi Minh next month.

Giải dùm mình bài 3 với ạ cần gấp lắm rồi Nếu giải đc giải dùm mình bài 1 luôn ạ

Một đoạn mạch mắc nối tiếp gồm hai điện trở R1=3R và R2=2R. Hiệu điện thế ở hai đầu đoạn mạch bằng 15 V. Hiệu điện thế ở hai đầu của R1 bằng A: 6 V. B: 9 V. C: 2 V. D: 5 V

Hãy so sánh điểm giống nhau giữa 2 bài thơ Cảnh rừng Việt Bắc và Tức cảnh Pác Bó. Những điểm chung ấy nói lên điều gì ?

- Khái niệm: Dung dịch, dung môi, chất tan, dung dịch bão hòa và dung dịch chưa bão hòa.

giúp mình với bài 1 bỏ dấu ngoặc rồi tính a) (17-229)+(17-25+229) b) (125-679+145)-(125-679) bài 2 tìm x biết : a)15-(4-x)=6 b) -30+(25-x)=-1 c) x-(12-25)=-8 d) (x-29)-(17-38)=-9

30 đ giúp mik nha Từ bài 4 tới bài 6 thôi ^_^

Một xe máy chuyển động đều,lực kéo của động cơ là 1150N.Trong 1 phút công sản ra là 690000J. Tính vận tốc chuyển động của xe (Các bước giải luôn nha )