It’s _________ for us to finish such a difficult program. We have to say sorry to them.
—Where are Lucy and Lily? —Oh , the two girls must _______ a game in the garden now.
That’s the only thingwe can do now.
That is a good idea. Who it?
I love places ________ the people are really friendly.
You’d better _________ go there ________ the heavy rain.