--- _______ do you water the flowers?--- Once a week. These flowers don’t need much water.
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.
I can’t do the work by myself so I ________ a student to help me.
—This watch is too expensive. —Well, we have got some ________ ones. They’re over there.