IV. Đặt câu hỏi nghi vấn với từ cho sẵn và trả lời, sử dụng thời quá khứ đơn:
1. Ba/ teach Liz Vietnamese// Yes
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2. he/ mail his friend a postcard// No
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3. they/ return home/ yesterday// No
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4. Mrs. Robinson/ buy a poster// Yes
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5. you/ send me those flowers// Yes
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6. she/ receive many gifts// No
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7. we/ meet her at the meeting/ last week// Yes
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8. they/ live in this town/ in 1990// No
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