Should it rain, the crops _____ .
This machine __________ It has worked for years.
When they moved to Canada, the children ______ to the change very well.
Busy as they are, parents should ______ at least two hours every week to spend with their children.
If you want to book tickets for the 2012 Olympic Games, just call 00952012. It ______ be simpler.
________ it is so hot, I guess we can’t do anything until after dark.