Jack used to be lazy, but now he is the top student in your class. Can you tell me________?
Where is your_____ shoe?
–Can you go shopping with me tomorrow? --_____. But I have a lot of work to do.
My mother is busy_____ the room.
The harder we work, the_____ result we will get.
–The classroom is_____ clean_____ it was yesterday. --Sorry, I forgot to clean it.