高一英语，在线等~~~~

Question

1.Tom was the first _______(attend) the interview yesterday
2.Did you have trouble ________ (find) the post office?
3.She said she _______ (type) a paper before l came in.
4.Great changes ________ (take) place in the last few years.
都是时态题，写清怎么做的，在线等，好的追加，快~~
...能不能统一下第一题的答案亚，顺便写下理由，谢谢大家了。

Answer 1

1.to attend
不定式作表语补足语。
the first to do sth. 第一个做某事的人
2.finding
have trouble （in）doing sth.
3.had typed
从句用了过去完成时
4.have taken
现在完成时
我的第一题答案就是对的啊。原因也讲清楚了啊。

Answer 2

to attend 固定搭配the first to do sth
finding 固定搭配have trouble in(可省略）doing
had type句意为她说在我进来之前她已经打印了一份，type在came这个动作之前，所以是过去的过去，用过去完成时
have taken 现在完成时 过去发生的事对现在造成了影响

Answer 3

检举1.attending
2.finding
3.had typed
4.have taken

Answer 4

attended 一般过去时
in finding 固定搭配 have trouble in doing sth
had typed 过去的过去 用过去完成时
have taken 对现在有影响的 用现在完成时

Answer 5

1.attending
2.finding
3.had typed
4.have taken

Answer 6

to attend
finding
wound type
have taken