–Whose shirt is this?--It _______ be Li Lei’s. It is too big for him.
----______are they staying in Beijing? ----For three days.
---It’s a fine day. Why don’t you go camping with us? ----________. Let’s go.
I often go to school ________.
----________ is it from your home to your school? ---- About 10 minutes’ walk.
Come here after class, I have ______ to tell you.