A1l flights _________ because of the heavy storm, so we decided to take the train.
#100045
A
have canceled
B
have been canceled
C
had canceled
D
had been canceled
推荐题目
All the scientific evidence ______ that increasing use of carbon dioxide ______ the rise of the earth’s temperature.
#101298
A
show; result in
B
shows; result from
C
shows; results in
D
shows; results from
—He’s got our tickets.—That’s good I ________afraid that he ________them.
#100398
A
am; has forgotten
B
was; had forgotten
C
was; forget
D
am; will forget
A new cinema ______ here. They hope to finish it next month. 
#104393
A
will be built
B
is built
C
has been built
D
is being built
Two nuclear power stations _______ in the past two months in Japan
#102551
A
are damaged
B
have been damaged
C
would be damaged
D
are damaging