You can hardly imagine the difficulty the woman had________ her children.
It is morning _____ we have four classes, not afternoon.
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
The idea puzzled me so much that I stopped for a few seconds to try to _______.
----Will you be ____ this afternoon , John?----It depends. I’ m afraid I’ll be called in by my boss.
Sarah had her purse stolen the day before yesterday when she was knocking about in a park, ______________?