Many air flights _________because of the eruption of the volcano, in _______case, many passengers had no choice but to take a train. 
#103338
A
had been cancelled; which
B
have been cancelled; what
C
had been canceling; that
D
have been canceling; where
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 The prices are _____ fast these days. Nobody can get the prices _____.
#104710
A
going down; to bring down
B
rising; to be bringing down
C
raising; bring down
D
going up; brought down
This is the first time that I _____ at the meeting.
#102465
A
had spoken
B
have spoken
C
spoke
D
speak
In such dry weather the flowers will have to be watered if they ____.
#103576
A
have survived
B
would survive
C
are to survive
D
should survive