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The traffic lane()suspended.
A.has
B.have
C.has been
D.have been
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The transmission of messages respecting the dangers specified is free()cost to the ships concerned.
A.of
B.on
C.at
D.in
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The use of this rule does not relieve vessels()their obligations to comply with the local laws.
A.from
B.of
C.off
D.over
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