1. A computer _____ think for itself, it must be told what to do.
A. can’t B. couldn’t C. may not D. might not
2. _____ studies hard will pass the exam.
A. Any student B. Whoever C. Anyone D. Those who
3. You _________ me about it earlier, but you didn't.
A. should have told B. would have told
C. must have told D. should tell
