Đặt câu hỏi và viết câu trả lời với Why...? Because....
1. he / be scared?// hate the sound of the drill
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2. children / often have toothache?// eat lots of candy
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3. you / be late for class yesterday?// miss the first bus
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4. her tooth / hurt ?// have a cavity
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5. they / not come to the metting last night?// be besy
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6. she / go to the doctor?// have a headache
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7. Minh/ not say anything/ yesterday ?// be very nervous
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8. we / brush our teeth after meals?// want to have healthy teeth
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