E-mail, as well as telephones, ___ an important part in daily communication.
It is strongly ______ that the machines should be checked every year.
--Can I help you with the heavy bag? --______.
That tree, _______ branches are almost bare, is very old.
As a rule, domestic servants doing odd jobs are paid_______.
Why don’t you bring ____ to his attention that you are too busy to do it?