Bemore

来源：语文精选馆 1.84W

Be more ____next time, and you won't make the same mistake again.

A. careless B. careful C. nervous

【解析】句意：下次你要加倍小心，不要再犯同样的错误了。

careless粗心的；careful细心的；nervous紧张的.根据句意you won’t make the same mistake again可知，下次你要加倍小心才不会再犯错，故选：B。