Look at the boy and his dog ________ are coming this way.
—Must I come back before supper, mum?—No, you .
—When did you buy this computer? It looks so new.—I it for only a couple of days. My sister bought it for me as a birthday present.
—Haven’t you been to Beijing before?— . I went there last summer.
He could hardly believe his eyes, he?
I don’t know . When he . I will phone you.