xac dinh ctpt cho moi chat theo so lieu 54,5%C;9,1%H; 36,4%N; 0,88g hoi chiem the tich 224ml (do o dktc)

Question II. Choose the correct answer : 1. My brother likes watching TV …………. I like going out with my friends. A. and B. but C. or D. so 2. My father ……………………… a car to work every day. A. drive B. to drive C. driving D. drives 3. ………….. do you take morning exercises?- Because it is good for my health. A. what B. when C. why D. where 4. ……………………..… apples do you want to buy? A. How often B. How far C. How much D. How many 5. Do you know……………… Hoa is? – She is at school now. A. which B. who C. where D. what 6. ………….. do you play football?– Because I like it. A. why B. which C. where D. what 7. …………….. do you go to school?I go to school by bike. A. How B. what C. when D. where 8. My brother used to go work ………………………. bike. A. by B. to C. on D. in 9. I …………..…………. to school on foot. A. go B. to go C. going D. goes 10. I like watching TV, ………………. I watch it in my free time. A. so B. when C. but D. or 11. …………. Do you brush your teeth?- Twice a day. A. how often B. how far C. how many D. how much 12. I want to work in television industry, …………. I am working hard. A. because B. although C. so D. and 13. Children like watching …………………. A. cartoon. B. weather C. news D. horror. 14. …….. are you so late? A. what B. where C. why D. How 15. …………. Are you talking to? - Nam A. who B. when C. what D. How Question III. Put the correct verbs in the brackets. 1. Every morning, Linda (get)……......up at 6.She (have) ………………………breakfast at 6:10 After breakfast, she (brush) ………………...her teeth. She (go) ……..to school at 6:30. She (have) ……………………………..…lunch at 11:30 at school. 2. We (watch)…………….T.V every morning. 3. I (do)……………………my homework every afternoon. 4. Mai and Lan (play)………………….games after school. 5. Vy (listen)………………to music every night. 6. Where (be)………………..your father now? He (read) …………………………………..a newspaper. 7. What …….you (do)………….…………? I (be)…………………….a student. 8. Where ………….you (go)……………….now? I (go) ………………………….…to the market. 9. She is cooking and we (do)……………………..the housework. 10. He isn`t in the room.He (play) ………………………………..in the garden. 11. Look!The birds (fly) ………………………………….……………. 12. I (go)………….to school by bus every day , but today I (go) …………..to school by bike. 13. Listen!Mai (sing) …………………………. 14. They (play)…………………volleyball every afternoon. They (play) ……………………volleyball now. 15. Mai (brush)…………..her teeth every morning. She (brush) ……………………her teeth now. 16. Listen!Lan (play) ……………………….the piano. 17. Mai (be)………………….tired now. 18. It is 6:00 p.m.Mary is at home. She (have) ……………….. dinner with her family around six o’clock 19. Where is your father?He is upstair. He (watch) …………………….……T.V He always (watch) ………………………..T.V at night. 20. Our teacher (live)………………..on Quang Trung street. 21. Bao and Mai (do)…………………the housework now. 22. What ………your mother (do)…….? She is cooking. 23. How …………you (go)……………to school every day? 24. Nam (go)……………..to work by car every day but today he (take) ………………….…a bus. 25. Where ……………..your father (work)……..? In the hospital. 26. Look!The teacher (come) ……………………… 27. She is very clever.She (speak) …………………….….4 languagues. 28. Steve (smoke)………………….10 cigarettes a day. 29. We usually (have)……………………dinner at 7: 00 30. Anne (wash)………………….her hair twice a week 31. Jane (teach)…………………English to children. 32. You (meet)………………….a lot of people. 33. He often (go)………………………….to the cinema. 34. Food (cost)………………………………………a lot of money. 35. Listen!Somebody (sing) …………………………… 36. She is tired.She (want) ………………….to go home now. 37. How often ……you (read)……………a newspaper? 38. “Excuse me, but you (sit)…in my place” “Oh , I am sorry” 39.“I am sorry“ I (not understand)… Please speak slowly. 40. What time …...........she (finish)……………work every day?

tìm một câu thành ngữ hoặc tục ngữ có cặp từ trái nghĩa nói về trẻ em

giải hpt 4x/x+1 + 5/y = 4 2/x+1 + 5/y = 3/x

Giúp mình làm những bài này nhé, hoặc làm 1 bài thôi cũng được.

: Cho tam giác ABC, đường phân giác AD. Điểm M thuộc cạnh AB, điểm N thuộc cạnh AC sao cho BM= BD, CN=CD. Chứng minh rằng: MN // BC?

Cho biểu thức A = x ² + 2xy + y ² - 8x - 8y Tính giá trị của biểu thức A khi x + y = 18

cho tam giác ABC vuông tại A có AB=5cm , AC=13cm . Tính BC

Cho phương trình x^2-2(m+1)x+m^2-3=0. Với giá trị nào của m thì phương trình có 2 nghiệm x1 và x2 thoả mãn x1^2+x2^2=20

Tìm x, biết : 𝑎) |𝑥 − 3| − 16 = −4 b) 26 - |𝑥 + 9| = −13 c) 5 – ( 10 – x) = 7 d) 11 + ( 15 –x) = 1 e) 8x – 75 = 5x + 21 g) 9x + 25 = - ( 2x – 58) h) |𝑥 + 3| = 4 i) 15 - |2𝑥 − 1| = |−8|