heard Backstreet Boys would sing at the New Theater.—- Where did you _____?[ ]

China is getting better and better at making high technology products.—That’s right. People around the world can hardly avoid________ products made in China.

I like the music that I can sing ______.

We _______-word from him so far.Where could he be

Mary went to the booking-office at lunch time, but all the tickets _____out. [ ]