问题详情：
![—Listen!Who]( "—Listen!Who")
—Listen! Who _____ in the music room?
—It must be Jane. She usually _____ at this time every day.
A. sings; sings B. is singing; is singing
C. sings; is singing D. is singing; sings
【回答】
D 根据listen可知应使用现在进行时；由usually和every day判断应使用一般现在时，故选D。
知识点：动词时态
题型：选择题
