They had failed in what they had set out to do.请问为什么句子前后时态都是过去完成时? 打算先发生, 失败后发生，可为什么fail不是用一般过去时呢？
I just woke up and feel tired.I just woke up and felt tired.I just wake up and felt tired.难道feel要跟前面时态一致吗?
...d. 这绝对是我吃过的最糟糕的食物。但我认为这个句子的时态有问题，因为主句与从句的时态自相矛盾，我觉得应作如下改动：It is absolutely the worst food I have ever had. It was absolutely the worst food I had ever had. 但老师说，他的句子也不...
请专家老师讲讲：英语中的“简单时态”是什么意思。
I have said that 后面是跟什么时态，是跟have一样还是和said一样的时态。请问老师。