——Are these buses?—— .A. Yes, they’re.B. Yes, they are.C. Yes, they aren’t.
I __________ to Canada twice. It’s so beautiful.
Your classroom is so dirty. Everyone should keep it ______.
– What else do you want?-- ________ else. I think I have got everything ready.
My grandma didn’t go to sleep ______ I got back home.
--Would you mind watering the flowers for me?--______. I have to go to the post office.