题目

—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 答案：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。

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