问题
单项选择题
Is Linda good at singing? Yes, she is. We often hear her（）in her room.
A.to sing
B.sang
C.sing
D.sings
答案
参考答案：C
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Is Linda good at singing? Yes, she is. We often hear her（）in her room.
A.to sing
B.sang
C.sing
D.sings
参考答案：C