You'd better_____next time.A.careful B.be careful C.are care of D.carefully
问题描述：
You'd better_____next time.A.careful B.be careful C.are care of D.carefully
答
A 形容词,
C 词组,后面应该还有词才对 be care of doing/n.
D 副词
had better do sth.最好去做某事,只能选 B
be careful