单项选择题
A.of B.on C.in D.at
M/V Yanyuan No.1.（）is your course and speed?A.WhenB.Whi...
单项选择题M/V Yanyuan No.1.（）is your course and speed?
A.When B.Which C.That D.What
When（）the pilot embark?A.willB.shallC.canD.may
单项选择题When（）the pilot embark?
A.will B.shall C.can D.may
On which side（）I rig the pilot ladder.A.willB.canC.shal...
单项选择题On which side（）I rig the pilot ladder.
A.will B.can C.shall D.may
