The old man has retired from the factory. He _____ there for 30 years.

We must ____every penny we spend during a business trip.[ ]

We will go to the Wushan Square this afternoon, why not take a bus —We ________ take a bus , it’s only one kilometer or more.

_________ it with me and I’ll see what I can do.

periment shows that proper amounts ofexercise, if regularly, can improveour health