It’s quite normal to ten percent of the cost of a building for a period of six months or so, in case faults are found in it.
| A．keep up | B． keep away | C．keep off | D．keep back |
Much to my, I’m unable to accept your kind invitation.
| A．fault | B．duty | C．guide | D．regret |
In this workshop, the output of July was three times of January.
| A．that | B．this | C．one | D．it |
— You seem to be on top of the world.
— Of course. There’s more exciting than seeing your name in print.
| A．everything | B．anything | C．nothing | D．something |
—I'm sorry. I didn't spill the juice on your clothes on purpose.
—
| A．Don't mention it. | B．How come? | C．So what? | D．Go ahead. |
— How would you like your coffee? —______ .
| A．It' s well done |
| B．The stronger, the better |
| C．One cup. That's enough |
| D．Very nice. Thank you |