er, when you _____your work,you might go out and play.

I like to listen to music ______ I’m having a walk in the evening

Little ________ that we were watching his every move，so he seemed to be going his own way in this business.

It’s not polite to read through _________ letters.

What was your sister doing at this time yesterday—She was reading a magazine _______I was writing an e-mail at home.