How are you going to the Summer Palace? —We’re going there____ bike. [ ]

A number of birdwatchers ______in Zhalong Nature Reserve. The number of them____500.

Is this your sister’s key, John？ —No, it isn’t. ______ is in the bag.

________ shall we paint the walls?—I prefer white. It makes us feel calm and peaceful.[ ]

What do you think of Confucius?—He wasan ancient teacher ______ wise sayings haveinfluenced many people in different countries.