I. Chọn đáp án đúng nhất (A, B, C hoặc D) 1. _________ did she go to the dentist last week? * A. When B. what C. Why D. Who 2. _________ a sweet song! * A. What B. Where C. How D. Why 3. I recived a letter _________ your aunt last week. A. on B. in to D. from 4. Last week, the dentist filled a cavity _________ my tooth. * A. about B. with C. in from 5. How _________ do you brush your teeth? * A. long B. far C. often D. much 6. Minh looks _________ again. * A. worry B. worried C. worrying D. to worry 7. _________ you scared? * A. Were B. Was C. Did D. Do Cho e xin kết quả bài làm

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