单项选择题
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
Get the searchlight（）for transiting the canal at night．...
单项选择题Get the searchlight（）for transiting the canal at night．
A.turned off B.already C.almost D.ready
Get everything ready（）mooring．A.ofB.onC.toD.for
单项选择题Get everything ready（）mooring．
A.of B.on C.to D.for
