I haven’t seen you for a couple of days. What have you been up _____?
Don’t worry, sir! All payments ____ be made by the end of the month.
The thought came to him ________ he should immediately leave the hotel.
Today’s paper carries an exciting _______________ of the match.
He found the boy __________ to a tree in front of the house.
During her childhood Susan read a lot about Chinese history, from which she _________ greatly in her work in China now.