-The light in the office is still on.-Oh, I forgot __________.
-- Can I tell Peter about the news?-- No, I don’t want anyone else to know it. You ________ keep it to yourself.
I feel it hard to keep up with my classmates in study and sometimes I lose heart. But whenever I want to ________ , my teacher always encourages me to work harder.
-- Lily is coming by ________plane tomorrow. -- Let’s go to ________ airport to meet her.
—Would you like some drinks, boys? —Yes, ____ , please.
— David promised to come round to have supper with us today. — But he ____. I’ve been alone for half an hour.