A scientist is now working on sending visual information to the brain, so that the blind _____ “see”.
A. can be able to B. is able to
C. could be able to D. could able to
─ Just imagine Mike finished the tough job only in 2 hours.
─ He _____ it all by himself. I dare say even 3 people can’t do it in one day.
A. can’t do B. couldn’t do C. can’t have done D. couldn’t have done
—Is Blake still absent from class?
—I think he be punished if he goes on with it.
A. shall B. must C. can D. will
President Hu Jintao urged that every effort to rescue and treat the injured when the earthquake happened in Sichuan this year.
A. is made B. must be made C. should make D. be made
— Catherine looks sad. Did you tell her about the accident?
— Yes, but I ________ her just before her final exams.
A. shouldn’t tell B. mustn’t have told
C. needn’t tell D. shouldn’t have told
To compete more effectively with others，it is time that university students to study abroad after graduation.
A. tried B. are trying C. try D. will try
