I'm really concerned ahout you. If something _______ happen to you  call me at once. 
#86661
A
would
B
should
C
could
D
might
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(2013·辽宁师范大学附中模拟)Fortunately it happened at night. If the hurricane ________ during the daytime, there ________ more deaths.
#86517
A
had happened; would have been
B
happened; would be
C
had happened; would be
D
happened; would have been
-----Did Mary come to the party?---I don’t know.She _____while I was out.
#87300
A
may have come
B
must have come
C
might come
D
could come