Excuse me. Which is the way ______ the post office, please? —Sorry, I don’t know. You can ask the policeman _______ help. [ ]

____________the window. What’s happening there？

Is this the first time you _____Chengdu ?—–No. But the first time I _____here, the city wasn’t so beautiful.

Listen! Is Mary singing in the next room?—No. It _______ be Mary．She has gone to Shanghai for an important meeting.

British people usually shake hands the first timemeet.