Ex 1: The past simple tense or The present perfect tense.

   1. ( You / ever / be ) to United State? - No, but I ( be ) England and France.

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   2. When we were in Canada, we ( go ) skiing almost everyday.

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   3. When ( you / meet ) your wife? - 3 years ago.

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    4. Peter ( not phone ) yet. I'm still waiting.

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    5. I ( know ) Helen since we ( be ) at school together.

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     6. My uncle ( live ) in Berlin in 1999.

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      7. We ( not see ) Beth and Mike's house yesterday morning.

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      8. Do you like this picture? My uncle ( paint ) it.

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      9. Mr.Dass ( leave ) for New York late last night.

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      10. Mr and Mrs Grey ( teach ) Rranch here for over 5 years.

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Bài tập về câu chủ động và câu bị động:

1.People can recycle ties to make pipes or floor coverings.  ->....................................................

2. They will build the new bridge by the end of the year. ->.................................................

3. We should use cloth bags instead of plastic bags. ->.......................................

4. We can use the garbage to make fertilizer. ->.................................

5. We must pay the bill at once. -> The bill.........................................

6.They can make tea with boiled water. ->Tea.........................................

Giúp mình  nha ~ Thanks ~.