I don’t think he is studying English in his room now.— Oh! ________?

passed this afternoon, I saw a little boy waslying on the grass, his hands _____ under his head

What do you think of the bridge —-I have never seen _________ before.

Excuse me, but can I take the seat— , young man. It’s for the elderly only.

Look! ________a high probability that their team will win—-Yes, the members are cooperating so well