Đủ trong 20 ngày đó bạn

 kết bạn nhé

2350;2530;2035;2053;2305;2503

3250;3520;3052;3025;3502;3205

5032;5023;5230;5320;5302;5203

cộng lại là 18 số

chọn a,b,c,d:

1. She is staying.......her uncle and aunt's house.

A. at B. in C. with D. on

2. Their trip to Da Lat ......wonderful.

A. was B. were C. are D. is

3. There is......meat in the box.

A. any B. a few C. a little D. many

4. Don't forget ......your teeth before going to bed.

A. brush B. to brush C. brushing D. not to brush

5 You .....stay at home when you are sick.

A. had better B. should C. mustn't D. A and B

6. He doesn't like candy. I...

A. don't too B. don't, either C. don't neither D. do so

7. I divided the sweets...several boys.

A. during B. between C. into D. among

8. He was only ten, but he ate....his father did.

A. as much as B. more that C. much than D. as much than

số đó là: 327,99 : (3+3+7)=25,23

tích đúng là: 25,23 x 337=8502,51

\(888888888888\)

Một giờ vòi thứ nhất chảy được : 1 : 5/2 = 2/5 ( bể ) Một giờ vòi thứ hai chảy được : 1 : 7/2 = 2/7 ( bể ) Một giờ cả hai vòi chảy được : 2/5 + 2/7 = 24/35 ( bể ) Cả hai vòi cùng chảy thì đầy sau : 1 : 24/35 = 35/24 ( giờ ) = 1 24 11 giờ = 1 giờ 27,5 phút = 1 giờ 27 phút 30 giây Đáp số : 1 giờ 27 phút 30 giây 

Ex1: Connect each pair of sentences, using the conjunction or conjunctive adverb given in brackets:

1. Lion dances are held when opening a new company, or commencing an activity. These dances are believed to bring good luck and prosperity and drive away evil. (because)

Because these dances are believed to bring good luck and prosperity and drive away evil, Lion dances are held when opening a new company, or commencing an activity

2. You come and visit a Chinese family. You should bear in mind not to give an odd number of presents. Odd numbers are considered unlucky in China. (if; because)

If you come and visit a Chinese family. You should bear in mind not to give an odd number of presents because odd numbers are considered unlucky in China

3. The weather in India is rather hot all year round. You shouldn't wear shorts or sleeveless shirts when visiting a pagoda. (but)

The weather in India is rather hot all year round but you shouldn't wear shorts or sleeveless shirts when visiting a pagoda

4. Lim Festival is the festival of "Quan Ho" singing. It is also space for various folk games. (moreover)

Lim Festival is the festival of "Quan Ho" singing, moreover, it is also for various folk games

5. People believe that the first person who visits their home during Tet holiday may bring them welfare for the whole year. The person who sweeps the floor on the first three days of this festive occasion might sweep away the wealth. (however)

People believe that the first person who visits their home during Tet holiday may bring them welfare for the whole year, however, the person who sweeps the floor on the first three days of this festive occasion might sweep away the wealth

Sự phá hủy kim loại hoặc hợp kim do tác dụng của các chất trong môi trường xung quanh được gọi chung là 

A. Sự ăn mòn điện hóa. 

B. Sự khử kim loại. 

C. Sự ăn mòn kim loại. 

D. Sự ăn mòn hóa học.