Inordertobeableto_______promptlytoroadhazards,driversareadvisedtoavoidusingmobilephoneswhiledriving.
A.respond正确答案A
B.require
C.prove
D.promise
Inordertobeableto_______promptlytoroadhazards,driversareadvisedtoavoidusingmobilephoneswhiledriving.
A.respond正确答案A
B.require
C.prove
D.promise