1. at → on

2. in → on

3. on → at

4. on → in

5. in → on

6. at → in

7. on → in

8. on → at

9. in → on

10. at → in

....

1. I like the red scarf on the shelf over there.

2. Nam left his watch on the sofa.

3. The music festival ends at 10 p.m.

4. She lives in a small flat over there.

5. He always gets up late on Monday morning.

6. My birthday is in two weeks.

7. This house was built in the 19th century.

8. We usually give gifts to each other on Christmas.

9. There are lots of interesting activities on New Year's Day.

10. We might live on the Moon in fifty years.

\(Zzz\) 🌸

9.Correct the mistaken prepositions in the following sentences. (Sửa các giới từ bị dùng sai trong các câu sau đây.)

1. I like the red scarf at -> on the shelf over there.               

2. Nam left his watch in -> on the sofa.                         

3. The music festival ends on -> at 10 p.m.                              

4. She lives on -> in a small flat over there.                                  

5. He always get up late in -> on Monday morning.                   

6. My birthday is at -> in two weeks.         

7. This house was built on -> in the 19th century.                           

8. We usually give gifts each other on -> at Christmas.           

9. There are lots of interesting activities in -> on New Year's Day.      

10.We might live on the Moon at -> in fifty years.                  

1. I like the red scarf at the shelf over there.                                        …at => on………………à…………………

2. Nam left his watch in the sofa.                                                            ……in => on……………à…………………

3. The music festival ends on 10 p.m.                                                     ………on => at…………à…………………

4. She lives on a small flat over there.                                                    ………on => in…………à…………………

5. He always get up late in Monday morning.                                       ………get => gets…………à…………………

6. My birthday is at two weeks.                                                               …………at => in………à…………………

7. This house was built on the 19th century.                                        …………on => in………à…………………

8. We usually give gifts each other on Christmas.                                ………on => at…………à…………………

9. There are lots of interesting activities in New Year's Day.              …in => on………………à…………………

10.We might live on the Moon at fifty years.                                         …………at => in………à…………………

                      Save the sea

Creature in the sea will be dead => die if we don't save the sea. If we litter in the sea, we will kill lots of fish. The sea is => died very pollution => polluted and every creature in the sea died under our hands. So we need to help the and all creature in the sea. I will help the sea by not littering, call everyone help =>to help.

Creatures in the sea will be dead if we don't save the sea. If we litter in the sea, we will kill lots of fish, the sea is very pollution and every animals in the sea were dead under our hands. So we need to help (the and)xóa nha all creatures in the sea. I will help the sea by not littering  call everyone help.

Playround -> playground

Playround ➝ playground

10. The new novel is interesting.
It’s ………a new and intersting novel………………………………………………………………...
11. What about buying a huge car?
Let’s buy a huge car……………………………………………………………………………
12. The shelf is not low enough for the kids to reach.
The shelf is too high fir the kids to reach……………………………………………………………………
13. What a beautiful river
How beautiful the river is…………………………………………………………………………

Hai kệ sách tất cả chứa 120 cuốn sách .

Chuyển 20 cuốn sách từ kệ thứ nhất sang kệ thứ hai.

Chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất.

Hai kệ bây giờ có số sách bằng nhau.

Có bao nhiêu cuốn sách trên mỗi kệ lúc đầu?

Giải 

Chuyển 20 cuốn sách từ kệ thứ nhất sang kệ thứ hai và chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất tức là chuyền 10 cuốn sách từ kệ thứ hai sang kệ thứ nhất thì số sách ở hai kệ bằng nhau.

Suy ra lúc đầu kệ thứ hai hơn kệ thứ nhất là : 10+10=20 (cuốn sách)

mà tổng số sách ở hai kệ là 120 cuốn

=> Số sách ở kệ thứ nhất là : (120-20):2=100:2=50 (cuốn) 

<=> Số sách ở kệ thứ hai là : 120-50=70(cuốn) 

Vậy kệ thứ nhất có 50 cuốn sách và kệ thứ hai có 70 cuốn sách

Hai kệ bây giờ có số sách bằng nhau.

Chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất.

Chúc bạn học tốt

Đáp án là C.

What do you do if you want to ..find.... A book in the library? If you know the author's ......name... , go to the author catalogue. Find the title of the book ..and... check the shelf mark. Make a note of this book..of... the appropriate shelf. If you do not know the author's name, go to the ....book... catalogue. If there is no catalogue in the library go to the subject catalogue

What do you do if you want to ..find... A book in the library? If you know the author's ..name.. , go to the author catalogue. Find the title of the book .and.. check the shelf mark. Make a note of this book...of.. the appropriate shelf. If you do not know the author's name, go to the ...book.. catalogue. If there is no catalogue in the library go to the subject catalogue

2. Skiing holidays are too expensive for me.

3. My dad's old car isn't safe enough to drive.

4. The storm wasn't strong enough to cause much damage.

5. My shoes are too dirty to wear to the party.