问题
选择题
Mrs Smith finds it hard to clear up the mess, as her children are always______ whenever she tries to.
A．in the way
B．on watch
C．in sight
D．on the line
答案
答案：A
题目分析：考查介词短语：A妨碍，B值班，监视，C在视野之内D冒极大的危险，根据句意：斯密斯太太发现很难打扫家里的混乱，因为每当她想这么做孩子们就会很碍事。所以选A。