The Internet has made it possible ______ in a very convenient way around the world.
The murderer was brought in, with his hands _____ behind his back.
We saw many students playing on the playground, most of them _____ girls.
He must have finished his homework for a long time, _____ he?
We can see the blue sky and the shining sun. There is no possibility _____ it will rain or snow today.
Leaders of many countries have been trying to _____ what it is that makes China develop so fast.