I set up email addresses for connecting with my parents last May. But I didn’t write to them as often as I ______. 
#62865
A
should
B
must have
C
should have
D
must
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You____Tom at the party yesterday;he went abroad for a holiday last week.
#63294
A
should have seen
B
might have seen
C
mustn’t have seen
D
couldn’t have seen