The flight to Guangzhou had to be            because of the heavy snow.
#61536
A
put up
B
put off
C
put away
D
put down
推荐题目
We ________you good luck in the monthly exam.
#60809
A
hope
B
wish
C
like
D
want
They are _______ the dark. 
#56895
A
interesting in
B
afraid
C
terrified of
D
sure of
— I feel tired and sleepy. — Why not consider_________?
#53208
A
to relax
B
breaking
C
resting
D
to work