–The plane is due to take off at 7:50 from the airport.–________ we fail to arrive there in time.    –Try to take another flight then.
#69435
A
What if
B
As if
C
Even if
D
Only if
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He succeeded in solving all the problems _____. 
#74564
A
as expecting
B
that expected
C
than expecting
D
as expected
---Mary hasn't written to us for a long time.---What do you suppose __ to her?
#73595
A
happened
B
to happen
C
was happened
D
having happened