—Is Bob still a volunteer?
—No, but he _____. He worked for the 2008 Beijing Olympic Games.
| A．used to | B．used to be |
| C．used to do | D．was used to |
相关试题
Many high school students are _____ to go to college, but _____about failing the entrance examinations.
A. eager… generous B. eager…keen C. anxious…eager 
eager… anxious
A variety of vehicles _____ in a steady stream along the main road.
A. canoed B. floated C. jogged 
flowed
Some Jewish people risk____ and put to death to escape from Germany during the Second World War.
A. to be caught B. being caught C. to catch 
catching
It is well-known that humans differ _____ other animals in their ability to speak.
A. with B. between C. onto 
from
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