If __________ bicycle is broken, _________ can use __________.

The number of the students in our school is about nine ____. ____ of them are boys.

Joe _________ from the top of the house and was badly hurt.—I’m sorry to hear that.

How do you study _______ a test?[ ]

The light in his office is still on. Do you know ?—In order to prepare for tomorrow’s meeting.