Jane had just finished her homework ____

问题选择题

Jane had just finished her homework ________ her mom asked her to practice playing the violin yesterday.

A．when

B．while

C．after

D．before

答案

答案：A

题目分析：考查连词：A. when当…时候，表示时间点，这时="at" this/that time，B. while当….时候，表示时间段，C. after在…后面，D. before 在….前面，句意：简刚刚完成作业这时妈妈叫她练习钢琴。选A。