There is a mistake in each of these sentences. Underline the mistake and then correct it.

5. Can I lend your pencil? I'm sorry. I'm using it.

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6. You should keep silently when they are working.

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7. How many times in a day do you brush your teeth ?

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8. Long is worried because he has see the dentist.

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There is a mistake in each of these sentences. Underline the mistake and then correct it.

1. The dirt on vegetables can cause you sick .

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2. Scientists say that the life started in the ocean .

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3. He gave up to smoke 2 years ago.

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4. He is a fast runner. He runs fastly.

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Choose the word that has different stress from others

1. A. complete B. detective C. gather D. event

2. A. mixture B. allow C. affect D. disease

3. A. exit B. cushion C. turtle D. improve

4. A. museum B. useful C. cavity D. wedding