The factory had to______ a number of  employees because of economic decline in the country.
#82684
A
lay out
B
lay off
C
lay aside
D
lay down
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They kept trying, and their efforts finally _______.
#82876
A
make it
B
paid off
C
are made it
D
are paid off
The opening policy has        many changes to china.
#67539
A
brought up
B
brought down
C
brought about
D
brought in