单项选择题
A.Write B.Filling C.Filled D.Fill
From what direction（）you approaching?A.areB.isC.amD.be
单项选择题From what direction（）you approaching?
A.are B.is C.am D.be
We（）this port for replenishment of fuel oil.A.is callin...
单项选择题We（）this port for replenishment of fuel oil.
A.is calling at B.are calling at C.is calling on D.are calling on
Stand by（）VHF CH16.A.ofB.onC.inD.at
单项选择题Stand by（）VHF CH16.
A.of B.on C.in D.at
