问题
选择题
| It is difficult for us to eat better, exercise more and sleep enough, ____ we know we should. |
A. as if B. the moment C. even if D. so that |
答案
答案：C
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| It is difficult for us to eat better, exercise more and sleep enough, ____ we know we should. |
A. as if B. the moment C. even if D. so that |
答案：C