1.（2011·福建省福州市八县（市）高三上期中联考）But for the arrival of the police, you __________ killed yesterday.
A. might have been B. could have been C. may have D. would be
A
2.（2011·福建省福州市八县（市）高三上期中联考）______ it have been the failure to pick up directions from the ground control that caused the air crash?
A. Must B. Could C. Would D. Should
D
