问题
单项选择题
As we took our seats on the bus, I noticed a woman（）with a young adult close to us.
A.sit
B.be sit
C.sitting
D.sits
答案
参考答案：C
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As we took our seats on the bus, I noticed a woman（）with a young adult close to us.
A.sit
B.be sit
C.sitting
D.sits
参考答案：C