— Mr. Lee _ to a student when I entered the classroom this morning.- He is very patient _ _he is young.
— Was Dr Bethune ___________? — Yes, he came from _________ and gave his life to the Chinese people .
— I’m afraid I won’t be able to get to the top of the mountain. It’s hard for me. — Keep on! I’m sure you have a strong _________.
—I’ve just washed the car for you, Dad. — __________! We can set off right now.
Did you go _________ on vacation last summer?
All the class keep quiet _________ the class begins.