Millie is getting on well with her friends but she is a little selfish.A. in timeB. on tim

问题补充：

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：

A. in time

B. on time

(答案→)C. at times

D. at a time

解析：四个选项含义分别为及时、按时、有时和每次，从题意来看C选项符合题意。