He is good at ________ himself _______ new things, which makes me admired.
| A．adjusting, to | B．being adapted, to |
| C．being adjusted, to | D．adapted, to |
Some new oilfields ________ since 1976.
| A．were opened up | B．will be opened up |
| C．have opened up | D．have been opened up |
She’s having a lot of trouble with the new computer, but she doesn’t know whom to ________.
| A．turn to | B．turn off |
| C．turn on | D．turn up |
________ you’ve heard the song, you’ll never forget it.
| A．At once | B．Once more |
| C．Once upon a time | D．Once |
The mother asked the boy ________ football in the street. It was dangerous.
| A．to play | B．playing |
| C．not to play | D．not playing |
—I’m going to the States.
—How long ________ you ________ there?
| A．were; stayed | B．are; staying |
| C．have; stayed | D．did; stay |