You shouldn’t have the machines _____all the while; you ought to have them _____now and then.[ ]

Dennis doesn’t paint others, but his ideas are the most wonderful of all.

I’d like to visit Kate tomorrow. Do you know ________ —Sorry, I don’t know her address, either.

um, just a few minutes．—Hurry up, Harry, or by the time you pack yourbelongings, the flight ____.

We often______seven continents.Asia has more population than______.