Why _____ these cards ______ orange?— Because orange can cheer you up.

What do you think of Black Coal, Thin Ice?–It’s a good film., it is not suitable for teenagers.

Two Nanchang Evening papers, please!–Sorry, sir. Only one left. Would you like to have？

English is popular around the world and most people speak it _____ a second language. [ ]

It is ________ my old camera, so I have just bought a new one.[ ]