问题补充:
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
答案:
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。