Exercise 1: thành lập CĐK dựa vào các tình huống cụ thể sau:
1.Work harder or you will lose your job
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2.Pay attention to the teacher or you won't understand the lessons
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3.Go to bed early or you can't get up early the next morning
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4.Save money now or you will be in debt in the future
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5.Read more referent books if you want to win a place at university
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6.Driving more carefully or you will have an accident
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7.Brush your teeth often in order not to get toothache
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8.Ann felt asleep, so she couldn't understand the lesson yesterday
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9.The heavy rain prevented them from taking a trip to Cuc Phuong national park
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10.Andrew walked in the rain so he got a flu
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11.Mai ate to much meat, so he is overweight
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12.Listen carefully or you won't know what to do
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