The _______ that the injured be sent to the hospital without delay turned out to be wise.
1.—When can we come to visit you?—Anytime you feel like .
2. ______was known to them all that William had broken his promise______ he would give each of them a gift.
3. —How long are you staying there?— _____depends.
4. I hate _______ when young people speak to the elderly in a rude way.
5.Is ____ necessary to complete the design before National Day?