单项选择题
A.they are B.are they C.they were D.were they
Please get everything ready prior（）shifting．A.onB.toC.a...
单项选择题Please get everything ready prior（）shifting．
A.on B.to C.at D.for
Please charge the expenses（）the ship’s account．A.forB.b...
单项选择题Please charge the expenses（）the ship’s account．
A.for B.by C.at D.into
Mooring（）are placed on both banks of the Suez Canal abo...
单项选择题Mooring（）are placed on both banks of the Suez Canal about 200m apart．
A.bollards B.ballasts C.bands D.benefits
