Computers cannot work without ______ from human beings.

．—Tell the men working there that they can rest for an hour. — All right. But does that________me, too ?

Whom would you like to be your assistant, Jack or David —If I had to choose, David would be ____choice.

The charity show is really wonderful.—Yes. I think it’s ________ great success.

There are so many kinds of MP3 in the shop. We can’t decide ______.