Polar bears live mostly on __________ sea ice, which they use as __________ platform for hunting seals.
| A．a; a | B．a; the | C．不填; a | D．the; 不填 |
____ you don’t like him is none of my business.
| A．What |
| B．If |
| C．That |
| D．Whether |
It is obvious to the students____ they should get well prepared for their future (2009•天津）
| A．as |
| B．which |
| C．whether |
| D．that |
--- Is there any possibility____ you could pick me up at the airport?
--- No problem（2009 .浙江）
| A．when |
| B．that |
| C．whether |
| D．what |
struck me most in the movie was the father’s deep love for his son.
| A．That |
| B．It |
| C．What |
| D．Which |
Many young people in the West are expected to leave____could be life’s most important decision-marriage-almost entirely up to luck．(2009．江苏)
| A．as |
| B．that |
| C．which |
| D．what |