I. Rewrite the conditional sentences for the following situations.
1. Phong doesn't have enough money so he can't travel abroad.
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2. I don't drive too close to the animals on safari. They don't get scared.
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3. Tom doesn't have a passport. He can't travel abroad.
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4. There are so many tourists visiting the national parks. The environment there is badly damaged.
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5. Tourists throw litter in the river. The water is polluted.
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6. I can't swim, so I'm not going scuba - diving with you.
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7. I want to go on an eco-tour to Phu Quoc National Park, but I don't have any holiday.
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8. These students do not work hard. They can't pass the exam.
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