Now most families have only one child _____ our country’s one-child policy.
早晨在校门口遇到同学时,应该怎么样打招呼? A. How are you? B. Good morning! C. Good evening!
The little girl kept ________ the house, because she wanted to keep it _________.
Would you please __________ us one of your __________ designs?
He always seems _______. Now he’s looking ________at his new drawing.
---________ do you usually spend ______ the piano? ---Two hours every day.