ex5 . đánh dấu vào các câu đúng và sửa các câu sai
1. he studied so badly that he couldn't pass the exam
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2. it is very cold . we can't bathe
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3. would you be very kind and answer this letter by return
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4. the story was very funny . we couldn't stop laughing
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5. the floor wasn't strong . we couldn't dance on it
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6. there were so many exercises that I couldn't finish them in a short time
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7. he spoke so fast that we couldn't understand him
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8. the restaurant is so expensive that we can't eat in that restaurant
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9. the price of the house is very high . we can't buy it
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10 . I am very unhappy so I cannot go out with him
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11 . they sang very well I could invite them to the party
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12 . you are very young. you can't have a front - door key
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13. I am rather old . I can't wear that kind of hat
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14. the ladder wasn't very long . It didn't reach the window
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15. he hadn't much money . he couldn't live on it
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16. he was furious . he couldn't speak
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Nè bạn coi lại đề hộ mk được không cái này làm gì phải là tìm lỗi sai được nhỉ?
Sorry nhưng thực sự thi mình học dở tiếng anh lắm ko thể tìm đc câu nào đúng câu nào sai trong mấy câu ở trên 
.