.She will tell us why she feels so stronglythat each of us has a role ______ in making the earth a better place to live.

It was the third time that Jack ______ to China

I’m afraid I can’t you, sir. Can you speak more slowly — Of course.

t imagine there________ be a shortage of water inYunnan, the southwest of China where thereused to be adequate rain

None of the students watched the teacher______