当别人问你“What’s the dog doing?”,你应该回答:_____。A. He’s play football. B. He’s playing football.
How _______(长)is your classroom?
It _______(是)a small town in the past(过去).
He _______(去)to a big shop yesterday.
This place is very i_______.
We can’t w_______ all of it. It’s too long.