—When should I hand in my paper?—Your paper must _______as soon as the bell________ .A. hand in,ringsB. be handed in,will ringC. be handed in,rings
—Have they finished the work? —Not .
—What do you our new car? —I think it is beautiful.
—Have you ever written a letter to your friend? —Yes, I.
—Have you received the books which ______ online? —Not yet.
This summer holiday I did an English course which ____ for four weeks.