In his youth，Ma Yun finally attended Hangzhou Teacher's Institute he failed the entrance exam twice．
| A．unless | B．after | C．since | D．until |
Nelson Mandela is，__________ the greatest man of the 20th century，certainly among the most extraordinary leaders．
| A．if there | B．if any | C．if not | D．if so |
I __________ glasses since I was in primary school and I hate them. They make me look like a bookworm.
| A．have worn | B．have been wearing | C．have been worn | D．was wearing |
You fool! You __________ all the people in the car yesterday if it had not been for me．You were so drunk while driving!
| A．could kill | B．might have killed |
| C．had killed | D．should have killed |
Things have changed quickly over the past decade and life in the country is much better than ___used to be.
| A．that | B．what |
| C．it | D．one |
I met a woman the other day， appearance made me think she was a film star.
| A．which | B．that | C．whose | D．who |