20.—Though it is 30 years _____ we last met, I still remember the scene _____ we got separated on a rainy day.
Don’t what the man says. Work hard and yourself, and you’ll succeed one day.
In your ,who is the best football player in the world today?
As soon as all the desks and chairs are ___ , we can let the competitors in.
There burns are not serious and should feel better___.
Correct the mistakes in the passage ___.