Dạng từ

4) many people were made homeless ajtes the flood

5) The children volunteered to clean up their ...chiu.............(neighbor)and local area

Hai dây dẫn thẳng song song dài vô hạn đặt cách nhau 10cm trong không khí. Dòng điện chạy trong 2 dây dẫn ngược chiều nhau và có cường độ I 1   =   10   A ;   I 2   =   20   A . Tìm cảm ứng từ tại: điểm A cách mỗi dây 5 cm

A. 4 . 10 − 5   T .

B. 8 . 10 ­ − 5 T .

C. 12 . 10 − 5 T .

D. 16 . 10 − 5 T .

Hãy đặt câu hỏi cho phần in đậm trong những câu sau.

1. My parents often go to the movies in their free time.

-> How often do your parents do in their free time?

2. We are going to visit our grandparents in Da Nang for a week.

-> Where are you going to visit our grandprarents.

3. She went to the city centre to buy some plants last week.

-> What did she go to buy last night?

4. Her new friend comes from Italy but he is England.

-> Where is your new friend from?

5. His sister is a famous pianist. She travels around the world every year.

-> Who is a famous pianist?

I really want to tell you about my friend, one of my best friend is Uyen. We were classmate during our five years at Nghe An University of Technology. She was a good student of my class. She has black hair and bright eyes and is very good – looking. Uyen and I had many things in common, especially, our hobbies. We both like traveling, billiard, table tennis, reading book and singing.

She has a kind heart and is easy to get on with everybody. The deeper our mutual understanding becomes the more we feel closely attached to each other. We are the best pupils in our class. Uyen is always at the top. She is good at every subject, but he never shows pride in his abilities and always tries to learn harder.

Uyen’s family is not rich. Her parents are farmers. She often spends most of his free time doing useful things to help his parents. I like Uyen very much because of his honesty and straight forwardness. He is always ready to help his weak friends in their study; as a result, lots of friends, thanks to his whole-hearted help, have become good ones.

\(A=n^2+n+1=n.n+n+1=n.\left(n+1\right)+1\)

n.(n+1) là tích của 2 số tự nhiên liên tiếp nên có tận cùng là:0;2;6 nên n.(n+1)+1 có tận cùng là: 1;3;7 ko chia hết cho 5 => A ko chia hết cho 15.

I am Alan from Canada.We have long ,cold winter and short,hot summers.In the summer go sailing and play basketball,but in winter I play ice hockey and go ice-skating.We have a holiday home near a lake, so I go fishing a lot,too.My favourite season is fall.I love the color of trees-red,gold,orange,yellow and brown

1 What is the weather like in winter in Canada?

The weather is long and cold.

2 what does Aln he do in summer?

Aln goes sailing - plays basketball.

3 What does he do in winter?

He plays ice hockey and go ice-skating.

4 Where does he go fishing?

He goes fishing near the lake.

5 Why does he love fall?

because he loves the color of tree.

GDP bình quân theo đầu người của Hoa Kì năm 2004 là:

A. 20848 USD

B. 39739 USD

C. 48627 USD

D. 57516 USD

đặt câu hỏi

1.Yes. I'd like a cup of caffee, please

-> Would you like a cup of coffee?

2. A bowl of chicken noodle is 4,000 dong

-> how much is a bowl of chicken ?

3. Yes. There is some fruit in the fridge

-> Is there some fruit in the fridge?

4.I'm cold and I'm hungry

->How are you?

5. She has big brown eyes

-> What does she have?

6. My father goes jogging three times a week

-> How often does your father go jogging?

7. I read and listen to music

-> What do you do in the free?

8. We are playing badminton now

-> What are you doing now?

9. Two hundred grams, please

-> How much gram do you want?

10. He is a weight lifter

-> What does he do?