... an entrance exam this year.’A. Perhaps we don’t have to take an entrance exam this year.B. We mustn’t take an entrance exam this year.C. We mightn’t take an entrance exam this year.D. It ... are……………people selling and buying things.A. filled with B. crowded of C. ready for D. crowded with14. I’m allergic to most canned foods. That’s why I always look for something fresh and……….A. air-tight ... to you how to use this new typewriter ?A. answered B. explained C. told D. showed12. We often watch a film on TV………….going to bed.A. then B. during C. upon D. before13. He thinks you are………….your...