--Did you listen to the speech?--- No, we ______ it. But we had a lot of traffic on our way.
#89194
A
could have attended
B
must have attended
C
could attend
D
shouldn't have attended
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This is his only request that the room_______ after being used.
#87382
A
be cleaned
B
would be cleaned
C
is cleaned
D
will be cleaned
___________, he would have been fired. 
#88131
A
Had he lied to the boss
B
Did he lie to the boss
C
If he has lied to the boss
D
If he lies to the boss