John was a student at this university from 1999 to 2003, ________ he studied hard and was made chairman of the Students’ Union.
| A．during which | B．by which | C．during which time | D．by which time |
His teacher told him that since his parents were working abroad , either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
| A．was | B．were | C．are | D．is |
One of my friends asked me to help him with his lessons this weekend, and thus __ my plan.
| A．ruined | B．ruining | C．to ruin | D．ruins |
ˉWhat do you think of Lin Shuhao’s performance in today’s match?
ˉ______. He should have won more points.
| A．it was just so–so | B．I have no idea |
| C．I’m afraid not | D．It’s my pleasure |
ˉCould you stop working and ______me a favor?
ˉ With pleasure.
| A．doing | B．do | C．to do | D．done |
After the new equipment was introduced, they produced ______machines this year as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |