-- Look at the boy running on the ground. Is it David?-- It _______ be him. I saw him go to the teacher’s office just now.
Your shoes are old. Why not buy a new _______?
–I am going on a trip to Beijing. – Really?_________ !
Walk _______ the post office. You’ll find the shoe shop ______ your left.
I don’t know _________ sheep there_____ on the farm.
–Remember to finish your homework this afternoon. –_______________.