Question

新概念英语第一册69课中语法新概念英语第一册69课中there were hundreds of people ther

Answer 1

you can see us in the crowd的后一句应为现在进行时表示你可以看见我当时…………

有区别.一般现表示对现在有影响的.如：

I have just had my lunch.

表示我已吃过饭,而且现在还不要吃.

I have saw that film.

表示我看过并不要再看了.

一般过去时只强调做过.如：

I went in.

我进来了,并不表示现在的状态.

I have gone in.

我进来了,而且一直在里面