Emergency line operators must always _____ calm and make sure that they get all the information they needto send help.[ ]

I’m sure that if you make good use of your ______ time, your English will be improved in a short time.

－When shall weset off－We ____ startoff at five o’clock if it ___ raining by then

___________ do you have this kind of match —— Oncea year.

It’s not difficult _____ us to learn English well.