忙于做实验的英文

有这几种说法：be busy with/doing sth；be busy with sth；sb be engaged in doing sth；be busy doing sth

I'm far too busy to sit around here.

我忙得不可开交，没空在这儿闲坐。

All I get is a busy signal when I dial his number.

我什么时候拨他的电话听到的都是忙音。

The house is on a very busy road.

房子位于一条交通非常繁忙的公路旁边。

Let's get busy with the clearing up.

我们开始清理吧。