21.你骗不了我。

I’m from Missouri.　

22.见机行事

Play to the score.　

23.肯定有人唆使他去干那件事。

There must be someone who had put him up to that.(正式：唆使=instigate)

24.他不是不愿意帮助你，而是他心有余而力不足。

It’s not that he doesn’t like to help, but that the spirit is willing, but the flesh is week。

25.事到如今，我们也只好听其自然了。

With things as such, we’ll have to let things slide.

26.这几天不知是什么事把我搞得心烦意乱的。

I don’t know what has set my nerves on edge these days.

27.让过去的事过去吧，我们还是好朋友。

Let bygones be bygones. We are still friends.

28.昨天晚上好险哪。老板同一个女职员在办公室动手动脚的，差一点儿让他的妻子给撞上。

The boss had narrow squeak last night in his office，his spooning with a girl clerk was almost found out by his wife.

29.这场旱灾是百年不遇的。

This draught occurs once in a blue moon.

30.算了吧。

Let’s call it quits.