Mrs.Smith finds it hard to clear up the mess.as her children are always whenever

Mrs.Smith finds it hard to clear up the mess，as her children are always ________ whenever she tries to.                                                     (2013·福建，29)

试题答案

A

解析句意为：Mrs.Smith发现很难清理混乱局面，因为当她尽力清理时她的孩子总是妨碍她。in the way妨碍；on watch值班，监视；in sight在视力范围内，在即；on the line处于危险中，(对方)在接电话。