.Oil prices have risen by 32 percent since the start of the year，______ a record US $ 57.65 a barrel on April 4.
| A．reached | B．reaching | C．to reach | D．to be reaching |
One can fail at times, but _______ makes a difference is one’s attitude towards life.
| A．what | B．which | C．that | D．where |
. He tried his best to solve the problem, _______ difficult it was.
| A．however | B．no matter | C．whatever | D．although |
With the World Cup at hand, _______ has been a heated discussion over which country the championship will go to.
| A．it | B．what | C．there | D．as |
---Besides being bright, he has always been working hard.
--- No wonder he _______ in almost all subjects.
| A．gets through | B．stands out | C．sets aside | D．holds up |
. Only after he graduated _______ how much he loved his alma mater (母校) .
| A．he realized | B．he had realized | C．had he realized | D．did he realize |