问题补充:
In the ten days New Years Day, revelers within the Fifth Ring Road to set off firecrackers from 7 a.m. to midnight.
A. following, are allowed
B. followed, allow
C. following, allowing
D. followed, have allowed
答案:
(答案→)A. following, are allowed
B. followed, allow
C. following, allowing
D. followed, have allowed
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