When Tom got to the examination room, he realized he ______ his pen at home.

I ______the film if I’m free next Sunday.

Will there be more trees in our hometown in ten years—- _________. Because people think trees are very important for us.

His father makes a promise to him that he will buy him a computer if he _____a good score for the entrance examination to college this June. [ ]

Where is my dictionary? I remember I put it here yesterday.—You __________ it in the wrong place.