—Excuse me, has the train from Beijing arrived yet?—________, you are three quarters earlier. It's only 9 now.

—I hear your new head is a little arbitrary in making decisions.— _________, he often listens to our suggestions!

The expert says that nowadays there are too many problems linked to poor diet and a ________of exercise.

 I think it _____ that she should be knowledgeable about computers for her present job.

The population of this city ,forty percent of which_____, ______ 15% in the last three years