Suddenly he his mother in the crowd and ran to her .
A. lost sight of
B. caught up with
C. caught sight of
D. in sight of
网友回答
A. lost sight of
B. caught up with
(答案→)C. caught sight of
D. in sight of
解析：考查短语辨析.A 看不见；B追上；C看见；D在视野范围之内；句意：突然他在人群中看见了他的妈妈，就向她跑了过去。故C正确。