I lost my dictionary, I must find it. Please call me _____ 944-5632.
---Mum, may I go out to play football? ---_________ you _________ your homework yet?
Would you mind _________ down the music? The baby is sleeping.
-Excuse me. Could you tell me _________? -Sure. I bought them in a video shop on River Road.
—Are you going to help John with his Chinese this evening? —No, He _______ to England. He will be back here next month.
Haze (雾霾)appears around us. Let’s do ________ helpful to protect the environment.