1 . 时态改错
1. I think it is necessary for my 19-year-old son to have his own mobile phone, for sometimes want to make sure if he comes home for dinner.
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2. When my boss returns hasn't been decided. Wait and I will inform you of it.
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3. My money has run out. I must go to the bank to draw some of my savings out before I've none in hand.
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4. I've won a holiday for two to Florida. I have taken my mum to Florida.
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5. Don’t worry. Their flight is about to leave in half an hour.
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6. Whatever may happen, go on until you succeed, and you know what life is about.
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7. — Can I join the club, Dad?
—You can when you will get a bit older.
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8. Look at the chimney. Its base has come loose. It has fallen, I think. Keep away from it.
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9. —Are you still busy?
—Yes， I am going to finish, and it won’t take long.
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10. I wonder if you apply for the post. After all, you are out of work now.
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