She is always listening to music doing her homework.A. asB. whileC. untilD. though

问题补充：

She is always listening to music doing her homework.

A. as

B. while

C. until

D. though

答案：

A. as

(答案→)B. while

C. until

D. though

解析：A. as尽管，作为 B. while当…时候 C. until 直到… D. though尽管；句意：她总是在做作业的时候听音乐。while表示两个动作同时进行，且多用现在进行时态的形式，两个动作要有延续性，故选B