It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.

＿＿＿＿＿＿ you leave so soon?-Yes. I have to catch my plane.

It usually takes her about ten minutes to school .

I wonder _ _.— I’m afraid we’ll be late.

We have to finish so much work within two days. We can’t __________ to waste any time.