单项选择题
A.before B.after C.ago D.since
The man（）you saw yesterday is my Chief Officer.A.whoB.w...
单项选择题The man（）you saw yesterday is my Chief Officer.
A.who B.whom C.what D.whose
The pilot wants to know（）my ship’s maximum speed is.A.h...
单项选择题The pilot wants to know（）my ship’s maximum speed is.
A.how much B.how many C.about D.what
He has been a Captain（）1992.A.afterB.sinceC.beforeD.for
单项选择题He has been a Captain（）1992.
A.after B.since C.before D.for
