题干
Millie is getting on well with her friends but she is a little selfish _____.
A：in time
B：on time
C：at times
D：at a time
答案(点此获取答案解析）
C
Millie is getting on well with her friends but she is a little selfish _____.
A：in time
B：on time
C：at times
D：at a time
