题目内容：

Like many cities in our country ,shenzhen has __ great changes in the past twenty years.
Like many cities in our country ,shenzhen has __ great changes in the past twenty years.
A.seen B.watched C.observed D.noticted
请说明理由,

优质解答

选A
see看；看见；理解；领会 在这里引申为“见证,目睹”的意思
watch观察；观看,注视；警戒；守侯,看守
observe观察；遵守；说；注意到；评论
notice通知；注意到；留心；引起注意