She calls back whenever someone ______ her a message.
“Well done, John! Not a single mistake _______ in your exam paper this time!” said the teacher.
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.