-- Have you seen the film called The trouble with Teenagers?--Yes, but I don't think it is worth _______.
—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.