Đề bài : full in the correct from of the adjectives in brackets. 1) Trains are .............. than planes ( slow ) 2) I boright the ............. car I could afford ( expensive ) 3) In this classroom there are ........... girl than boy ( many ) 4) Ann this the ...........child in the family ( young) 5) that tv set is the ................. off all ( cheap ) 6) this flace is .......... than that one ( safe ) 7) Lisa is ........... than kate ( pretty ) 8) This is the ............. flim I have ever seen ( exciting ) 9) Tom is ...................than Perter ( talented )

Born in Scotland in 1847, Alexander Bell became interested very early (1) …........…….. methods of human communication. He was influenced by his father and grandfather, who spend years working with deaf people and those with faulty (2) ……………… Bell’s father even go system so far as to develop a system of so- called “visible speech” for the (3) …………. . He used sketches of the different (4) ....………….. of the lips and tongue. This science of visible speech formed the foundation of young Bell’s knowledge of the mechanics of (5) .....………. speech. 1. A. on B. in C. at 2. A. speed B. speech C. sound 3. A. blind B. sick C. deaf 4. A. positions B. ways C. uses 5. A. man B. human’s C. human

Question 1: They rushed into public shelters because the volcano... A.buried B.stroke C.erupted D.raged Question 2: They.......us with food because our village was collapsed last month A.provided B.provide C.had provided D.provides Question 3: We have to....the forest fire. A.take B.scattered C.evacuate D.put out Question 4: For words ending in-logy and- graphy, the stress is placed on the SECOND syllable from the end. A.True B.False Question 5: We tried to run out of the house into the street before the walls... A.collapsed B.raged C.stroke D.erupted Question 6: These words: zoology, photography, biology have the same position to place stress. A.True B.False Question 7: When the storm started, they began to....shelter A.provide B.took C.evacuate D.put Question 8: The word APOLOGY has the stress is APOLO'GY A.False B.True Question 9: Last year, there was a terrible storm which... the rural area of Yen Bai Province. A.raged B.collapsed C.erupted D.struck Question 10: They should...the city before natural disaster happens A.erupt B.evacuate C.buried D.shook Giúp mình với vote 5* ạ

Tổng của hai số tự nhiên là 102. Nếu thêm chữ số 0 vào bên phải số bé rồi cộng với số lớn ta được tổng mới là 417. Vậy số lớn là .

Tính nồng độ mol của ion H+ của dd CH3COOH 0,1M. Biết hằng số phân ly axit Ka= 1,75.10^-5

Xét phản ứng thuận nghịch trong pha khí 2SO2 + O2 (t0, xt) 2SO3. Cho vào bình kín thể tích không đổi 3,0 lít một hỗn hợp gồm 0,20 mol SO3 và 0,15 mol SO2. Cân bằng hóa học được thiết lập tại 250C và áp suất chung của hệ là 3,20 atm. Xác định % thể tích của oxi trong hỗn hợp cân bằng.

Giải dùm mình mấy câu này với ạ A) mx^2 -2(2m-1)x m+2=0 B)3x^2+(2m-1)x+m+2=0 Mình cảm ơn nhiều ạ

Bài 1:Tìm x thuộc Z biết: a)(x-1).(2-x)=0 b)(-x+3).(-7+x)=0 c)(x+9).(x^2-25)=0 d)(2x-5)-(x-8)=0 e)(4x-5)-(x+1)=0 Bài 2:Tìm x thuộc Z biết: a)(x-1).(y+2)=-5 b)(x+1).y=-11 c)|x-1|+|y-2|=0 d)|x-1|+(y-2)^2=0

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Rewrite the sentences. 1. I don’t know your address, so I can’t write you a letter. => If ………………………………………………………………………………………………….. 2. I live in a countryside because I don’t have a house in the city. => If ………………………………………………………………………………………………….. 3. If you don’t start early, you will miss the train. => Unless……………………………………………………………………………………………... 4. She didn’t call me last night because she didn’t know my phone number. => If…………………………………………………………………………………………………... 5. They cancelled the trip because it rained heavily. => If …………………………………………………………………………………………………. 6. He is overweight. He eats too much => If …………………………………………………………………………………………………. 7. The room is cold because they leave the door open. => If …………………………………………………………………………………………………. 8. Unless she works hard, she will fail the next exam. => If………………………………………………………………………………………………….. 9. I didn’t buy a bicycle because I didn’t have enough money. => I would…………………………………………………………………………………………… 10. You got into so much trouble because you didn’t listen to me. => Had……………………………………………………………………………………………….