She listened to her favorite rock music while ___ along with the words.A.singing B.sang
题目
She listened to her favorite rock music while ___ along with the words.A.singing B.sang
C.sing D.to sing
答案
A
while doing something
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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