Một dây dẫn có chiều dài xác định được cuốn trên trên ống dây dài l và bán kính ống r thì có hệ số tự cảm 0,4 mH. Nếu cuốn lượng dây dẫn trên trên ống có cùng chiều dài nhưng tiết diện tăng gấp đôi thì hệ số từ cảm của ống là

A. 0,1 mH

B. 0,2 mH

C. 0,4 mH

D. 0,8 mH

Minh and his friends are going to have a picnic near the lake

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. I’d like a sandwich and a glass of milk, please.

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l looked everywhere for the key l wish I had found it

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My name is Long and I’m a Vietnamese. I am twenty-four years old. I live in Ho Chi Minh city in the south of Vietnam.

I have a big family with six people. I have two sisters and a brother. My sisters are older and my brother is younger than me. My father is a teacher at a secondary school. He has worked for 35 years in the field and he is my biggest role model in life. My mother is a housewife. She is nice and she is really good at cooking. I love my family so much.
I’m a generous and easy-going person but when it comes to work I’m a competitive perfectionist. I’m also an optimistic and outgoing person so I have many friends and other social relationships. I enjoy reading, writing and doing math. I decided to become a Civil Engineer because I have always been fascinated by bridges, buildings, and skyscrapers. A degree in Civil Engineering enables me to achieve my goals and also gives me an opportunity to make a difference in the community.

Five years from now, I want to become a project manager of a construction project. As a project manager, my primary goals are managing people, set budgets, and making decisions of all kinds. I also want to speak English fluently so I can work with people from different countries.

II. Điền vào chỗ trống các từ thích hợp để tạo thành câu hoàn chỉnh :

1. ...IS........ Mr Nam a teacher ? Yes, ...HE......... is.

2. What's ......IT............. ? It's .....AN........... eraser

3. Are ....YOU.......... nursess ? Yes, we .......ARE........

4. Are you doctors ? No, ..WE............ are not.

5. Are you an engineer ? No, ....I AM........... not.

6. What do you do ? ...............I AM................ a student.

7. ...WHO......... is that ? .....THAT IS.............. Linh.

8. No, it ...ISN'T.................. It's ....AN.................... armchair.

9. How many ......DESKS.............. are there in your house ? There ....IS......... one desk.

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Everyone wants a good lifestyle. I do too. I want a good job that is quite near my house – I don't want to spend a long time on trains and buses.

I also want a nice house where I can relax. I like decorating and shopping for furniture. I also want lots of friends so I can do stuff with them.

My idea of a good lifestyle is being happy at work, going to the gym or going out for a meal after work, and spending the weekends with friends doing things or going places.

Of course I have to have a holiday every year in another country. I haven't got that lifestyle yet because I haven't got enough money. I'm a little jealous of my friend's lifestyle. She has everything and is always going out and having fun.

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IV/ make sentences from the words provided

1. I wish/ would /Nha Trang /year

->I wish i could visit Nha Trang next year

2. Film /boring / so/ he go home early

->The film is boring, so he goes home early

3. He/run / fast/ but/ not catch/ bus

->He ran fast but he didn't catch the bus

4. A daily newspapers / be/ first published / Germany/ 1650

->A daily newspapers was first published in Germany in 1650

5. Car/ repaint blue / next week?

->Are you going to have your car repaint next week?

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1, She ( be ) is at home

2, He ( not do ) doesn't do his homework

3, She ( have )has a big house

4, Are you ( be ) a teacher ?

5, Is it ( sleep ) sleeping at night ?

6, My school ( have )has five floor

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