I am not used to the food here. He isn’t, ____.

This must be a footprint of a tiger. — It ____ be. A tiger’s should be much larger and deeper than this.

the Dome, ________ 103-minute documentary released by Chai Jing, has pushed public awareness about air pollution and encouraged people to join in efforts to make ________difference.

26．— Andy promised to attend your wedding today last night. — Yes, I believe he will ________.

The boy was excited he went to Beijing