1.wedidnotdirturbhim.(until)hefinishedwork.两句连成一句,正确答案是Wedidnotdisturbhimuntilhehadfinishedwork.为什么不能说Wehadnotdisturbhimuntilhefinishedwork.2.Hecouldnotanswer(neitherof)(eitherof)theq

Question

1.we did not dirturb him.(until)he finished work.两句连成一句,正确答案是We did not disturb him until he had finished work.为什么不能说We had not disturb him until he finished work.
2.He could not answer (neither of) (either of ) the questions I asked.为什么用neither of 而不用either of这句不是有否定词了吗?

Answer 1

disturb显然发生在finish work之后,也就是说后者才是过去的过去,应该用过去完成时.如果是We had not disturb him until he finished work.就是 disturb 发生在finish work之前,明显不对.如果加上否定词就感觉not disturb不是那么好理解,其实你可以换个句子,比如说,we did not go to school until the rain had stopped.强调的是动作发生的时间对比而不是not disturb这种状态、
第二个问题没看懂...