If you had joined the chat room ten minutes ago, you _____ what we were talking about.
#87950
A
will know
B
are knowing
C
can know
D
would have known
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With so much work on hand, you _____ to see the game last night.
#90201
A
mustn’t go
B
shouldn’t go
C
couldn’t have gone
D
shouldn’t have gone
Perce Blackborow and his companions stayed on Elephant Island for six months before rescue came, so they ________ a lot of difficulties.
#87871
A
must go through
B
may go through
C
must have gone through
D
could have gone through
I        my homework yesterday, but unfortunately I forgot about it totally.
#87193
A
need have handed in
B
should have handed in
C
must have handed in
D
may have handed in