If the wind doesn’t _____ before three o’clock, we won’t be able to take off today.

“May I go and play with Dick this afternoon, Mum?” “No, you can’t go out _______ your work is being done.”

It is ______taking the trouble ______a job fully to new employees.

nce a year by fire officials, whether a school is large of small, is a regulation that must be carried out in this country.

The employment rate has continued to rise in big citiesthanks to the efforts of the local govenments to increase.