1 . The volunteers ________ (定期) contact with the community to help old people deal with tough problems in life. (根据汉语提示单词拼写)

2 . 会议只持续了一个小时。
The meeting lasted___________ ___________ ___________an hour.

3 . I believe it is normal for anyone to do something crazy ______(occasional).

4 . 单句改错
1. To lose weight, I eat lots of vegetables and fruit, and do exercise three times the week.
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2. We used to see each other regular, but I haven’t heard from him since last year.
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3. I could hard imagine living in such a remote mountain village without Internet for months.
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4. We rare agree on what to do, which troubles me much.
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5. On average, a powerful earthquake happens less than once each two years.
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6. It was raining. Little Mary felt cold, so she stood closely to her mother.
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7. My friend hasn’t answered my letter already, and I am waiting for his reply.
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8. In order not to miss the early bus, Tom got up much early than usual that morning.
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9. As we all know, English is wide used all over the world.
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10. Drunk driving used to occur frequent in our city, but now such cases are rare.
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5 . 用所给词的适当形式填空
1. A sudden stop can be a very frightening experience, ______(especial)if you are travelling at high speed.
2. Studies show that those who drink and smoke ______(heavy)are likely to suffer from heart attacks.
3. The fruit in this area tastes good and sells ______(good).
4. Your success will be ______(large)decided by what you do and how you do it.
5. I have heard ______(recent)that the headmaster was never late for work.
6. I’ve been writing this report ______(occasional)for the last two weeks, but it has to be handed in tomorrow.
7. Tom finished his work ______(careful)because it was very important.
8. The publication of Great Expectations, which was both ______(wide)reviewed and ______(high)praised, strengthened Dickens’ status as a leading novelist.
9. We used to be good friends, but now we don’t ______(frequent)see each other.
10. Users can rent bikes. When they’ve finished riding, they can ______(simple)park their bikes at any station.