It _________ be the only way to solve the problem. There are other choices.
may not
mustn’t
need
should
Would you please be quiet? The baby __________.
— Mr.Green, __________ you _________the Great Wall last Sunday? — No, but I’ll visit it next week.
--- Mum, I got good marks in the final exams. --- .
--- Mum, I’m starving! Can I have something ? --- Oh, dear. You can only drink some milk. There is in the fridge.
The world is getting smaller and smaller because the Internet gets us .