Ⅰ.单项填空
1．We all feel it is Jack as well as his wife that ________ for their son's bad performance at school.
A．are to blame B．is to be blamed
C．are to be blamed D．is to blame
2．The workers will go on strike if the demands they ________ are turned down.
A．put aside B．put through
C．put forward D．put away
3．Rod loves ________ clocks. However, he never manages to put them together again.
A．taking apart B．giving away
C．making up D．turning off
4．Only after he had spent several nights working on the maths problem ________to wonder whether the problem was wrongly set.
A．he began B．that he began
C．he did begin D．did he begin
5．My brother is shy，so it is a great ________ for him to sing in front of the judges and audience.
A．honour B．benefit
C．characteristic D．challenge
6．Children ________ to difficult situations are better at handling those ________ tasks.
A．exposing; challenging B．exposed; challenged
C．exposed; challenging D．exposing; challenged
7．Since the ________ of the disease，90 patients have been confirmed to have the illness and another 35 suspected patients are still under examination.
