——Would you mind lending me your bike? ——_________.
There ______ great changes in our hometown in the past fifteen years.
It _______ seven years __________ Hong Kong returned to China.
------- _______ 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.