____ is good _______ your health.
From the tower, you can see _______ of London _______ a nice day.
Why not _______ a taxi to the zoo? It can save us a lot of time.
This blue down coat (羽绒服) looks nice. I want to ________.
—________ will you take? —Small, please.
I want to send Mary a card. She may ________ it in a few days ________ post.