----Is that book so boring?---- ______________. You can know a lot about birds.
—It's so late. Why not write the report tomorrow? —But I don't know _______ I can do it if not now.
—More and more people come to visit Mount Huangshan —That's true. It has become the_______ of Anhui.
Mum, what are you cooking? It_______ so sweet.
—I forgot to bring my dictionary. Could I use yours? — Yes, you _______.
Rick has learned a lot about Chinese culture _____ he came to China.