Seeing the policeman, the thief was behaving __________ nothing had happened.
| A．even if | B．as if | C．now that | D．even though |
The two boys fought and fought until one ______.
| A．gave up | B．gave in | C．gave | D．gave off |
He will _____ our class to sing at the school singing contest.
| A．take place of | B．stand for | C．represent | D．representative of |
John _____ knowledge of radio just by staying around the radio station.
| A．caught on | B．worked up | C．took up | D．picked up |
It isn't so much whether he works hard; the question is whether he works _____.
| A．above all | B．in all | C．at all | D．after all |
When I took his temperature, it was two degrees above _____.
| A．average | B．ordinary | C．regular | D．normal |