Some people          feel sick when they read a book in a car or on a boat．

—I lost my pet pig, but it came back yesterday.—As the saying goes: an old horse knew the way.

– May I take the magazine out of the reading room?-- No, you can’t. You            read it here. It’s the rule.

 Personally, the job as a teacher _____ be challenging, for I sometimes _____ deal with some smarter but less diligent students. 

— Must I stay here with you?—No, you_____. You may go home, but you ______go to the net bar.