问题
选择题
He looked around and caught a man ______ his hand into the pocket of a passenger.
A．put
B．to be putting
C．to put
D．putting
答案
答案：D
D。catch sb doing sth 意为“碰上某人在做某事”或“逮住某做某事”。
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He looked around and caught a man ______ his hand into the pocket of a passenger.
A．put
B．to be putting
C．to put
D．putting
答案：D
D。catch sb doing sth 意为“碰上某人在做某事”或“逮住某做某事”。