At last our head teacher ______ who broke the window of the classroom.

—I didn’t see you when I went to your office yesterday afternoon. Where were you?—I ____ a meeting in the meeting room.

—Your shoes are so old. Why don’t you buy a new pair?—Because I ______ all my money on an MP5.

Do you know what__________ before you __________?

Julie，what ______in your hand?Look! It’s a new iPad for my daughter．