—Could you tell me what time the last train leaves Beijing for Hong Kong?—Sorry, you could ___________on the Internet.
It’s _____ hard problem for the twins that ____ of them can work it out.
You ______ to the party if you’re so busy.
—_____I use your dictionary, Tom? —Of course, you _______
Simon improved his way of study. ________, he has made great progress.
—What colour is _______ orange ? —It's____ orange .