I was about to go to bed _____ someone knocked at the door.

(2014·北京市东城区第一学期期末)The man answered the phone in a loud voice at the meeting，________made Andy annoyed.

And if poverty is less of a problem and people are better educated，_______is a good chance that we will see less violence and fewer wars

When asked _____ they need most, the kids said they wanted to feel important and loved. 

You should try to get a good night’s sleep _______ much work you have to do.