I wasn’t complaining. I         expressed my surprise because I had never seen this happen in that case before.

— May I speak to Mr Smith? — I am afraid not. He is at a meeting now. It’s not ___.

If you’re around people complaining others, ______ are that you will start to complain as well.

According to a UN report, one third of the world population have no _________ to clean drinking water and health care.

I hear____ boys in your school like playing football in their spare time,though others prefer basketball.