--Excuse me,which is the way to the post office?--Sorry, I don’t know .You can ask the policeman over there.--________________ A. How lucky! B. It’s a pity. C. Thank you all the same.
The more careful you are, ________mistakes you’ll make.
---________does she study English? ---________ working with a group.
— I haven’t got a partner _________. — Maybe you can ask John for help.
— My grandpa learns English for two hours every day, _________ he is over70. — Really? We should learn from him.
There are _________ floors in the building and my home is on the _________ floor.