---Are you coming to Tom’s party? ---I’m not sure. I______ go to the concert instead.
#88026
A
might
B
must
C
would
D
should
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       I’ve been working all day, but I feel as if I _______ nothing.
#88119
A
have been achieved
B
were achieving
C
had achieved
D
am achieving
If I___you, I____more attention to English idioms and phrases. 
#89906
A
was; shall pay
B
am; will pay
C
would be; would pay
D
were; would pay