II. Fill in the blanks with the correct preposition.

1. Can you help me wash all these dirty glasses ?

2. We look up the new words in the dictionary.

3. You should'n eat and watch TV at the same time.

4. These cards are in alphabetical order and by author.

5. Schools in Vietnam are different from those in the USA.

6. Mary and I are looking forward to seeing you.

7. Farmers are very hard-working. They work from morning to night on their farms.

8. Children are growing too fast.

I.

1. We can't go out now because it (rain ) is rainning.

2. How much it (cost ) cost to mail a letter to England ?

3. Take these pills and you ( feel ) will feel better for work.

4. What about ( go ) going to the park on Sunday ?

- I prefer ( see ) seeing a movie to going there.

5. It's a quarter to seven now. You ( be ) will be late for work.

6. Are your parents ( plant ) planting flowers in the garden now?

7. Lan will send her friend the mesage as soon as she ( return ) returns

8. No one ( know ) knows the answer.

9. There ( be ) are a lot of news on TV everyday.

I. Select A, B, C, or D only to indicate the world whose stress pattern is different from the rest.

1. A. relax B. invite C.village D. begin

2. A. appliance B. present C. comic D. chatting

3. A. campaign B. celebration C. rehearse D. vacation

4. A. apartment B. dictionary C. author D. definitely

5. A. energetic B. volunteer C. education D. buffalo

Dishwasher is a machine that washes dishes

Các electron không chuyển động theo chiều dòng điện vì trong các electron mang điện tích âm nên khi electron tự do trong kim loại được nối vào nguồn điện sẽ bị cực âm của nguồn điện đẩy và được cực dương của nguồn điện hút.