36. Bob has never seen this movie before.

39 Have you received any letter from your parents yet?

43. People plant trees in public areas.

44. I didn't go to school because it rained heavily yesterday.

45. How long have you studied at school?

Là sao thế bạn??

ờm! Dựa vào ghi nhớ SGK và áp dụng vào bài học , luyện tập . -HẾT-

Ví dụ/:

- The journey was long and complicated.

 => The journey was not only long but also complicated.

Câu d nào vậy bạn?

Bài 30:

a: Xét ΔDEI và ΔDFI có 

DE=DF

DI chung

EI=FI

Do đó: ΔDEI=ΔDFI

3. who do not get

8. me to draw him

9. to be praised 

18 Debra visited the castle. She visted the museum,too

19 We have got nothing for food

20 She may not ring after all

22 Was this book borrowed by you?

23 The house on the corner is bigger than ours

24 I have never read such an amusing thing

26 She refused to marry John

3: \(\left(3x+5\right)\left(2x-7\right)\)

\(=6x^2-21x+10x-35\)

\(=6x^2-11x-35\)

4: \(\left(5x-2\right)\left(3x+4\right)\)

\(=15x^2+20x-6x-8\)

\(=15x^2+14x-8\)

1: \(\Leftrightarrow x-2-7x+7=-1\)

=>-6x+5=-1

hay x=1(loại)

3: \(\Leftrightarrow\left(x+2\right)\left(x-1\right)-\left(x+1\right)\left(x+3\right)=4\)

\(\Leftrightarrow x^2+x-2-x^2-4x-3=4\)

=>-3x=9

hay x=-3(loại)

4: \(\Leftrightarrow x^2+2x+1-x^2+2x-1=3x\cdot\dfrac{x+1-x+1}{x+1}\)

\(\Leftrightarrow4x=\dfrac{6x}{x+1}\)

\(\Leftrightarrow4x^2+4x-6x=0\)

\(\Leftrightarrow4x^2-2x=0\)

=>2x(2x-1)=0

hay \(x\in\left\{0;\dfrac{1}{2}\right\}\)