Be . Make sure not to make the same spelling mistake next time. A. helpfulB. carefulC. use

问题补充：

Be . Make sure not to make the same spelling mistake next time.

A. helpful

B. careful

C. useful

D. peaceful

答案：

A. helpful

(答案→)B. careful

C. useful

D. peaceful

解析：根据下文含义，可知选B,小心，确认下次不要犯同样的书写错误。