----Your backpack is very nice. ----________.
— Do you know who teaches ______ Chinese? — Yes . Mr Wang does.
The girl often plays _______ piano in her bedroom.
--- I’m very tired these days. --- Why not ______ music? You will feel ______.
Simon is ______ to make us all ______.
---Can you work out the maths problem? ---Sorry, I can ______ understand its meaning.