老师说;“Good afternoon , class!”学生应该说__________________.
Is that man Mr.Smith?It _____ be him.He has gone to New York on business.
How do you like my second-hand car? It costs only 26,000 yuan.---Wonderful! It looks ____________ new.
---What a heavy rain!--- So it is.I’d rather _____________ on such a rainy day.
You never know how much difficulty we had ___the problem.Luckily, we managed to solve it with his help.
I‘m not sure _________ next week.