—Lily, _____ you _____ your ticket?—Not yet!
------- _______ you _______ the book ______ to the library yet. ------ Yes. I have.
The old man was not ______ to climb up the hill.
We hope you _______ a happy holiday in Hong Kong.
-Can you tell me Kitty’s address.-I don’t know, either. But I’ll tell you her address when she ______ to me.
Mr. and Mrs. Black ______ back _________.