—What about going swimming this afternoon?—You ______ be joking! Don't you know I'm afraid of water?A. may B. can C. must
I think this bike belongs our teacher. She likes red bikes.
—There is a pen on the ground. Is it Li Long’s? —It Li Long’s. He went to Beijing many days ago.
They are _______ the dark.
I am really shy. I don’t know anyone there?
My grandfather us stories when I was young.