a) Trung bình cộng của ba số 24,6 ; 42,9 và 51,3 là :

( 24,6 + 42,9 + 51,3 ) : 3 = 39,6 

b) Trung bình cộng của bốn số 124 ; 720 ; 960 và 820 là :

( 124 + 720 + 960 + 820 ) : 4 = 656 

⇒ a) Trung bình cộng của ba số 24,6 ; 42,9 và 51,3 là : 39,6 

    b) Trung bình cộng của bốn số 124 ; 720 ; 960 và 820 là : 656

_HT_

#lie_♫♪

every

are the day long or short

Susan prefers pizza to burgers

4.     ………WHAT…….. is the weather like today?

A. is                    B. are                       C. was                      D. will be

6.     ……IS……… the weather fine today?

<p class=">A. Is                   B. Are                      C. Was                      D. Will

7.     What ………DO… you often do in summer?

A.   are                B. do                         C. did                        D. will

8.     Her family ………GOES………. Skiing this winter.

A.   go                B. goes                      C. went                     D. is going

1.your/sister/often/go/to/the/who/does/supermarket/with?

Who does your sister often go to the supermarket with?

2.yesterday/afternoon/took/her/to the/dentist/Sarah's mother

Sarah's mother took her to the dentist yesterday afternoon

1. Why didn't they tell you about the story?

2. Did you sing any English songs at Linda's birthday party?

1. Tại sao họ không kể cho bạn nghe về câu chuyện?

2. Bạn có hát bài hát tiếng Anh nào trong bữa tiệc sinh nhật của Linda không?

1.Why didn't they tell you about the story?

2.Did you sing any english songs at Linda's birthday party?

Linda have breakfast before she goes to school.

Linda have breakfast before she goes to school

kb vs mik nha 

tham khảo nhé

Well, now, I will describe the health problem that I had. Last week, my school had a camping day. All of the students and teachers in my school can join this outdoor activity. It was a very happy day for me to play with my friends. But after that day, I had a sore throat and flu because I talked too much and I was under the sun without a hat. I would say that it was so terrible. I feel tired and weak. I can’t do anything during that time. However, my mother gives me some tips to feel better. I didn’t drink cold water, I washed my mouth by saltwater. Especially, I have to take a lot of medicines. It’s very…horrible. Nevertheless, thanks to the medicines, I feel better now. I feel very healthy and I can do a lot of things again.

a  :seed

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