I believe that the 21st century is one ______ China will become one of the most powerful economic countries.

Our chemistry teacherannounced that he would do the experiment in a differentway we might findinteresting

There is no such place_________you dream of in all this world.

More than one doctor_____ involved in the rescue that took place after the earthquake.[ ]

Could you please _____ in the room–Oh， I’m sorry.