________ , the polluted air canresult in deadly diseases or even death.

Our English teacher was standing________usso that she could hear us all clearly.

Peter has good grades in all his subjects, but he never shows off.—-I agree. He is very ________.

I’m afraid the life we are used to a lot in a few years’ time.

I can’t believe that _____ a little girl can write _______ many stories.