There was a large box behind the door and Peter couldn't _____ falling over it in the darkness.
My sister_______ the League last month and she has decided to _______ the activity to help the aged next week.
Life would be happier if we could only be born at the age of eighty and ________reach eighteen.
You’d better get the second-hand car ________ before you sell it.
They believe that there is _________ in the world.
---How about going for a walk after supper? -----__________.