单项选择题
A.At B.On C.Of D.In
（）the ship leaves at 1000 today，she can arrive there to...
单项选择题（）the ship leaves at 1000 today，she can arrive there tomorrow.
A.When B.How C.If D.Should
（）the packing is the same，the lots are different in mar...
单项选择题（）the packing is the same，the lots are different in marks.
A.For B.Since C.Because D.Although
（）the morning from 0800 to 1200 Chief Officer is on dut...
单项选择题（）the morning from 0800 to 1200 Chief Officer is on duty.
A.On B.In C.At D.During
