He ___________ unwisely, but he was at least trying to do something helpful.

 —Who is the girl standing over there? —Well, if you _____ know, her name is Kate.

---Could I use your bike? ---Yes, of course you_________.

When I was your age, I dared not go out alone at night, ________ you?

You _ to the meeting this afternoon if you have something important to do.