Using his hybrid rice, farmers are producing harvests ________________ before.
| A．as large twice as | B．twice as large as |
| C．twice larger as | D．as large as twice |
—Which type of car do you like better?
— ______．They are both expensive and high emission（高排量）．
| A．None | B．Either | C．Neither | D．Both |
The 2010 World Cup will be held in South Africa，and no one can ____ which country will be the champion．
| A．fancy | B．estimate | C．value | D．predict |
It matters little____ a teacher looks like but____ matters much is how a teacher 
teaches his／her students．
| A．how；what | B．how；it | C．what；what | D．what；it |
Which do you enjoy _____ your summer holiday，going to Tibet or going to Dalian?
| A．spending | B．to spend | C．being spent | D．to be spent |
—Could I have a word with you，mum?
—Oh，dear，if you _____．
| A．can | B．must | C．may | D．should |