IV.
A.
1. I rarely play hopscotch with my friends at school.
2. I often play badmiton with my dad on the weekends.
3. My parents usually buy new books at the bookstore.
4. My sister never does martial arts after school.
5. We often go to the library to read books and study.
6. My mom always goes to the supermarket after work.
B.
1. We decorate houses at Halloween.
2. John sometimes plays video games with his friends after school.
3. Fashion show starts at 8 p.m.
4. How do people prepare for Christmas?
5. How often do you go shopping?
6. The bus leaves at 10 a.m.

12.2 cắt quá bạn đăng lại nhé

13

\(n_{Al}=\dfrac{10,8}{27}=0,4\left(mol\right)\)

a.

\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)

0,4->1,2----->0,4-------->0,6

\(V_{H_2}=0,6.22,4=13,44\left(l\right)\)

b. \(C\%_{HCl}=\dfrac{1,2.36,5.\left(100+20\right)\%}{200}=26,28\%\)

c. \(n_{HCl.dư}=(\dfrac{200.26,28\%}{100\%}:36,5)-1,2=0,24\left(mol\right)\)

\(C\%_{HCl.dư}=\dfrac{0,24.36,5.100\%}{10,8+200-0,6.2}=4,18\%\)

\(C\%_{AlCl_3}=\dfrac{0,4.133,5.100\%}{10,8+200-0,6.2}=25,48\%\)

14

\(n_{Na}=\dfrac{2,3}{23}=0,1\left(mol\right)\)

\(2Na+2H_2O\rightarrow2NaOH+H_2\)

0,1---->0,1--->0,1-------->0,05

a. \(V=V_{H_2}=0,05.22,4=1,12\left(l\right)\)

b, \(CM_{NaOH}=\dfrac{0,1}{0,1}=1M\)

15

\(n_K=\dfrac{3,9}{39}=0,1\left(mol\right)\)

\(2K+2H_2O\rightarrow2KOH+H_2\)

0,1-->0,1---->0,1------->0,05

a. \(V_{H_2}=0,05.22,4=1,12\left(l\right)\)

b. \(CM_{KOH}=\dfrac{0,1}{0,2}=0,5M\)

16

\(n_{H_2}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\)

\(Ca+2H_2O\rightarrow Ca\left(OH\right)_2+H_2\)

0,1--->0,2----->0,1-------->0,1

a. \(m_{Ca}=40.0,1=4\left(g\right)\)

b, \(CM_{Ca\left(OH\right)_2}=\dfrac{0,1}{0,3}=\dfrac{1}{3}M\)

1A 2A 3B 4C 5A 6B 7B 8C 9A 10D

1 being guilty of stealing the car

2 another way to reach the city center?

3 did he suspected that the money had been stolen

4 were you, I would take more exercise

5 me not to leave

6 not seeing Andrey on her trip to London

7 thought to have been caused by human error

8 Elizabeth if she would be visiting the Taj Mahal when she went to India

9 Marengo trying the chicken

10 never tasted such a delicious cake

He denied stealing the car.

Isn’t there another way to reach the city centre ? 

At no time did he suspect (that) the money had been stolen. 

If I were you, I’d take more exercise.

She persuaded me not to leave.

he greatly regretted not seeing Andrey on her trip to London.

The accident is thought to have been caused by human error.

He asked Elizabeth if she would be visiting the Taj Mahal when she went to India

 The waiter recommended that i should try the chicken Marengo

1 - He denied being guilty of stealing the car

2 - Isn't the reanother way to reach the city center?

3 - At no time did he suspected that the money had been stolen

4 - If I were you, I would take more exercise

5 - She persuaded me not to leave

6 - He greatly regretted not seeing Andrey on her trip to London

7 - The eccident is thought to have been caused by human error

8 - He asked Elizabeth if she would be visiting the Taj Mahal when she went to India

9 - The waiter recommended Marengo trying the chicken

10 - I have never tasted such a delicious cake

Nick: Chào Phong.

Phong: Ồ, chào. Bạn đã đánh thức mình đấy Nick.

Nick: Nhưng 10 giờ rồi đấy. Chúng ta hãy ra ngoài chơi.

Phong: Không, đừng rủ mình. Mình nghĩ rằng mình sẽ ở nhà và chơi Zooniverse trên máy tính.

Nick: Cái gì? Hôm nay là một ngày đẹp trời. Thôi nào! Bạn đã ngủ đủ rồi. Chúng ta hãy ra ngoài làm gì đi - nó lành mạnh hơn.

Phong: Làm gì hả Nick?

Nick: Chúng ta đi bơi đi? Hay đạp xe? Chúng đều rất tốt cho sức khỏe.

Phong: Không, mình không muốn.

Nick: Cậu trông không khỏe đó Phong, cậu ổn không?

Phong: Mình cảm thấy buồn. Mình ăn thức ăn nhẹ mọi lúc, vì thế mình đang lên cân.

Nick: Vậy là càng thêm lý do để đi ra ngoài.

Phong: Không, Nick. Hơn nữa, mình nghĩ mình bị cảm - mình cảm thấy yếu ớt và mệt mỏi. Và, mình có thể bị cháy nắng bên ngoài.

Nick: Mình sẽ không chấp nhận câu trả lời không. Bây giờ mình sẽ đến nhà cậu!

The water is too hot for me to drink

The food was too salty for us to eat

VD He is too young to go swimming in the river.

->Anh ấy còn quá trẻ để đi bơi ở sông

      He is too  weak to climb the mountain.

->Anh ấy quá yếu để leo núi

      They are too bad at English to talk to foreigners

->Họ quá tệ tiếng Anh để nói chuyện với người nước ngoài

\(=\dfrac{2x^4-2x^3+2x^2+3x^3-3x^2+3x-2x^2+2x+2-x-5}{x^2-x+1}\)

\(=2x^2+3x-2+\dfrac{-x-5}{x^2-x+1}\)

Vậy: Đa thức dư là -x-5

Câu 1: B

Câu 2: B

Câu 3: A

Câu 4: C

1. be crazy about + N = be a fan of N

2. keen on V-ing = fancy V-ing

3. call for = need

4. take part in = participate in

5. They have raised funds to help disabled children since early 2009.