Americans _________sent a message to the world________ we have never been a collection of Red States and Blue States: we are, and always will be, the United States of America.
| A．that, \ | B．who, that | C．who, when | D．that, what |
There are two buildings, ________ stands nearly a hundred feet high.
| A．the large one that | B．the larger of them |
| C．the larger of which | D．the larger of that |
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 |