问题
选择题
| He often tells the children _____ when they play water sports. |
A. be careful B. to be careful with C. to be careful D. not be careless |
答案
答案：C
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| He often tells the children _____ when they play water sports. |
A. be careful B. to be careful with C. to be careful D. not be careless |
答案：C