The weather that day may not be as good as expected, in case we will have to put off the event.
Two years later, her father disappeared, never to be _________ again.
We want to encourage the students ________ the teaching.
What he said was not relevant _________ the matter in hand.
Those _________may leavetheclassroomnow.
When they saw the police car, the attackers turned and ________ .