问题
选择题
| — Hi, Peter. You seem to have gained a lot of weight. — Well, good food, not enough exercise. That's _____ I got fat. |
A. how B. when C. what D. whether |
答案
答案：A
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| — Hi, Peter. You seem to have gained a lot of weight. — Well, good food, not enough exercise. That's _____ I got fat. |
A. how B. when C. what D. whether |
答案：A