问题

She had just finished her homework ________ her mother asked her to practice playing the piano yesterday[ ]

A:when
B:while
C:after
D:since

正确答案是：

同类题型

The history of nursing __ the history of man

I feel tired and sleepy. — Why not consider_________

Is he Mike— ____________. His name’s Dale.

Have you finished your homework_____ —No, not_____.