－I have lost my new English dictionary.
—______________!
A. No hurry
B. That’s great
C. What a pity
---How many classes do you have on Friday afternoon?
---_________, we are free.
A. Nothing B. No one C. None
– Mom, I passed the P.E. test this morning.
– Really?___________!
A.Bad luck
B. Congratulations
C. You’re welcome
---If each of us__________ the environment, the world will become more beautiful.
---I agree with you.
A. takes measure to protect
B. make a contribution to protecting
C. makes a contribution to protect
---Hello, this is Mike. Is Dr. Li in?
---Sorry, he_________ to the west of Africa to help the patients there.
A.has been B. is going C. has gone