JOHN FAILED AGAIN. HE _________ HARDER. A. MAY HAVE TRIED B. CA...
22. John failed again. He _________ harder.
A. may have tried
B. can tried
C. must have tried
D. should have tried
22. John failed again. He _________ harder.
A. may have tried
B. can tried
C. must have tried
D. should have tried