---Did you visit the famous museum ?  ---No. We ______ it. But we spent too much time shopping. 
#89472
A
can't have visited
B
could have visited
C
must have visited
D
shouldn't have visited
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—May I speak to the patient now?—No, you _____. He is too weak now.
#90168
A
needn’t
B
may not
C
mustn’t
D
oughtn’t
Mr. White __________ at 8:30 for the meeting, but he didn’t show up.
#87078
A
should have arrived
B
should arrive
C
had arrived
D
should be arriving
______, there would be no point arguing any longer.
#86765
A
Was that true
B
If that was true
C
Should that be true
D
Could that be true