May I please speak to Tom.

我可以和Tom通话吗?

Tom is gone to lunch.

Tom去吃午饭了。

I’ll just try him again.

我会再打给他的。

Do you want me to have him give you a call?

你想要我请他打电话给你吗?

No, but what time do you expect him back?

不，但是你知道他什么时候会回来吗?

He should be back in about forty minutes.

他应该大约四十分钟后回来。