Some people who don’t like to talk much are not necessarily shy; they _____ just be quiet people. 
#89074
A
must
B
may
C
should
D
would
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I should very much like to have gone to the party, but ______. 
#87309
A
I'm not invited
B
I won't be among the invited 
C
they won't invite me
D
they didn't invite me
---    you disturb her with these annoying questions just when she was busy cooking dinner?---Sorry, I      that at that time.
#89328
A
Should, should have done
B
Shall; may have done
C
Must, should do
D
Must, should not have done