问题
选择题
The old woman was sitting under a tree, __ a picture.
A．to paint
B．paint
C．paints
D．painting
答案
答案：D
painting a picture是伴随情况作状语.
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The old woman was sitting under a tree, __ a picture.
A．to paint
B．paint
C．paints
D．painting
答案：D
painting a picture是伴随情况作状语.