题目内容：

I was disappointed because my best friend didn't___ at my birthday party.
A.step up
B.call up
c.come up
d.show up

优质解答

I was disappointed because my best friend didn't___ at my birthday party.
选D
A 提高；增加；走近
B打电话给；召集；使想起；提出
C走近；走过来；到来：；提及；被提出：
意思都不对