Bài 8. Viết câu dưới đay theo cách khác, sử dugj “might’ hoặc “may”
Ví dụ : Perhaps Helen is in her office ---> She might be in her office.
Perhaps Helen isn’t in her office --> She might not be in her office.
1.Perhaps Helen is busy.
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2. Perhaps she is working.
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3. I’m not sure that Liz will come to the party.
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