1.What do you plan to do  during the summer vacation?

2. They'll have to leave early in the morning to catch the train.

3. We stay in touch by letter.

1. I wish you had a very happy retirement.

2. Nowadays most teenagers have the freedom to do whatever they please.

3. It would be foolist to make a decision to quickly.

4. He says he has no intention of resigning.

5. I can't find the solution to the last math problem.

6. I'm full of admiration for my English teacher. 

7. I'm very pround of my father and love him so much. 

8. She is looking for a suitable gift for an old man. 

9. His carelessness caused the accident.

10. Her bussines has been a huge success.

Current, I am at home.

Stork has two wings.

I want you to study hard for the exam?

Đáp án : d) to study

Humans are burning too much fossil fuels.

 Dung' DL BTKL: moxit + mH2SO4 = mmuoi' + mH2O 
voi' nH2O = nH2SO4 = 0.5*0.1 = 0.05 
--> mmuoi' = 2.81 + 0.05*98 - 0.05*18 = 6.81g 

Cach' #: (Fe2O3, MgO, ZnO) ----> (Fe2(SO4)3; MgSO4, ZnSO4) 
--> nO = nSO4(2-) = nH2SO4 = 0.05 
--> m(Fe, Mg, Zn) = 2.81 - mO = 2.81 - 0.05*16 = 2.01g 

mmuoi' = mKL + mSO4(2-) = 2.01 + 0.05*96 = 6.81g 

2) M + H2SO4 ---> MSO4 + H2 (M la` Fe, Mg, Zn) 
--> nSO4(2-) = nH2SO4 = nH2 = 1.344/22.4 = 0.06 
--> mmuoi' = mKL + mSO4(2-) = 3.22 + 0.06*96 = 8.98g 

C#: Cung~ dung` BTKL 

3) Tuong tu bai` 2 
nSO4(2-) = nH2 = 0.2 --> m = 8.9 + 0.2*96 = 28.1g 

4) Tuong tu --> nSO4(2-) = 0.25 --> m = 10.8 + 0.25*96 = 34.8g

Anh chàng dế mèn tron truyện dế mèn phiêu lưu ký là: Cho thấy anh dũng cảm, dám cả gan đấu với bọn nhện tung tướng.

Trung bình mỗi giờ đi được số km là: 

216 : 3 = 72 km

It says one her report that she weighs 40 kilos.

Đáp án : C) weighs