面。) 2) The law was designed to shut out immigrants. (这项法律旨在拒绝移民入竟。) 3) They shut out the dust by having double windows. (他们用双层窗户防尘。) 4) They begin to speak French, shutting out the boy from their conversation. (他们讲起法语来, 使这个男孩无法参加他们的谈话。)题目14：Mrs. Smith finds it hard to clear up the mess, as her children are always ______ whenever she tries to.