The reason _______ he was absent from the meeting is_____ he suffered form a headache.
| A．what; because | B．for; that | C．why; that | D．when; because |
--- How did you like the concert last night?
--- I enjoyed it very much, but the dancers ______ a better job.
| A．could have done | B．couldn’t have done | C．could do | D．had done |
Criticized as online games are, they never fail to ______ a large number of teenagers．
| A．appeal to | B．object to | C．refer to | D．turn to |
---When shall we start the reconstruction of the historic building?
--- Not until our program ______ by the authority.
| A．will approve | B．will be approved |
| C．has approved | D．has been approved |
I have to reschedule the appointment with you since there is a ______ in my arrangement.
| A．contract | B．contrast | C．connection | D．conflict |
You will have to stay at home all day ______ you finish all your homework.
| A．if | B．unless | C．whether | D．because |