Millie often goes to school by bus but her mother drives her to school.A. sometimesB. some

问题补充：

Millie often goes to school by bus but her mother drives her to school.

A. sometimes

B. some times

C. sometime

D. some time

答案：

(答案→)A. sometimes

B. some times

C. sometime

D. some time

解析：some time表示一段时间; sometime表示某时; some times表示倍数,次数; sometimes表示有时.整句理解为: Millie经常乘公共汽车去上学,但有时她开车送她去上学.所以选A。