_____you have to do the job, you should try your best to do it well even though it may be very difficult for you.
We are just _____ calling you up _____ you come in.
--How often do you go to the library?--______.
I can't understand it, will you please _____ once more?
Everybody in the little town knew my first teacher, so we had no _____ finding his home.
It' s too late to go out now. _____, it's starting to rain.