I will meet Jane at the station. Please ________ what time she will arrive.
It is 8 o’clock now. Tom must _____ to school .
If (如果) you have problems (问题),you can ask Tom _____ help.
Please call Jenny _____ 4687687.
Look at those ________. They are _______
-----Where ______ my books ? ------They’re ____ the sofa.