1 B

2 D

3 A

4 D

5 B

6 D

7B

8 B

9 A

C. Nếu dịch vật ra xa gương cầu lõm, cách gương một khoảng lớn hơn bán kính của gương thì gương cầu lõm sẽ cho ảnh thật nhỏ hơn vật và ngược chiều

Ex 8. Complete each sentence of the following letter. Use the words given.

Dear Mum and Dad,

1. Last week / doctor / advise / not / swim / few weeks /. ……………………………………………………………………………………..

2. He / say / rash / due / sun / should / stay away / chroline/. ……………………………………………………………………………………..

3. I / almost / break down / hear / because / school swimming carnival / just / corner/. ……………………………………………………………………………………..

4. / have to / give / miss / this year / and / feel / very blue / think / about /. ……………………………………………………………………………………..

5. See / during / December holidays / when / come / visit /. ……………………………………………………………………………………..

Love,

Mary
Giúp mình với ❤❤

Ex 7. Rewrite the following sentences in such a way that they mean the same as the original sentences.

1. It’s a good idea to eat a lot of fruit and vegetables every day.

- We should ……………………………………………………………………….

2. We couldn’t keep on cleaning the streets because of the heavy rain.

- Because it ……………………………………………………………………….

3. The garden party won’t take place if the weather doesn’t improve.

- Unless …………………………………………………………………………..

4. Both students and teachers can borrow books from the library.

- The library lends ……………………………………………………………….

5. Nobody plays this piece of music as beautifully as he does.

- He plays this …………………………………………………………………..

Ex 6. Give the correct form of the verbs given to complete the sentences.

1. - You ever (do) volunteer work? - Yes, I (join) my school volunteer team last summer. …………………………………………………………………………………….

2. I (know) a lot about Beijing because I (go) there last summer. …………………………………………………………………………………….

3. Sit down and watch TV; I (finish) my work soon before I join you. …………………………………………………………………………………….

4. You (ride) into town on your new bike yet. …………………………………………………………………………………….

5. They (not arrive) yet, but they should be here soon. …………………………………………………………………………………….

6. It’s the first time I (get) all the answers right in a test! …………………………………………………………………………………….

7. She (start) doing the gardening an hour ago, and she (not finish) it yet. …………………………………………………………………………………….

8. Eating fruit and vegetables every day (be) very healthy. ……………………………………………………………………………………
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