一个英语单选Nodecisionaboutanyfutureplanuntilwehavedoneathoroughresearchoftheteachers’preference.A.hasbeenmadeB.ismadeC.isbeingmadeD.willbemade我觉得不妥,因为从句是现在完成时,现在完成时是强调

Question

一个英语单选
No decision about any future plan until we have done a thorough research of the teachers’ preference.
A.has been made B.is made C.is being made D.will be made
我觉得不妥,因为从句是现在完成时,现在完成时是强调过去发生的动作持续到现在或者强调对现在造成的影响,是过去,而主句的时间还在从句之前,所以我觉得不妥.

Answer 1

选d是因为从句的现在完成时强调的是现在的结果.并不是过去的动作.（现在完成时表示过去的动作对现在造成的影响和结果.主要说后面的结果）如果时间状语从句用了一般现在时或现在完成时都表示一个将来的动作.这时主句要用将来时.这是一条语法规则.如
You will not get off the bus until it has stopped completely.
I will go to see you until I finish my work.
You will not leave until you have finished your job
.