题目内容：

27. All things ____ the planned trip will have to be called off
A. considered B. be considered C. considering D. having considered
选A．．．为什么?

优质解答

原文意思应该是：被认为是计划好的旅行的所有事情不得不被取消.所以应该填which are considered结构是：All things(which are considered the planned trip)will have to be called off,括号里表示定语从句而which a...