Mr Wang does what he can ________ us improve our English.
We agreed ___________ to see a film this Saturday evening.
We are all here ____ Lily. Where is she?
Mike likes mountains and lakes. He hopes to ____ nature when he is free.
There are about ____ people in the hall.
-— He was_______ tired_______ he fell asleep as soon as he lay down. -— Oh, we can go out and let him have a good rest.