单项选择题
A.saw B.seen C.see D.seeing
The electronic engineer has come on board to （）you.A.me...
单项选择题The electronic engineer has come on board to （）you.
A.met B.meet C.meeting D.meets
（）is the captain?A.WhichB.WhatC.WhereD.How
单项选择题（）is the captain?
A.Which B.What C.Where D.How
（）persons who come on board to do their business.A.Rece...
单项选择题（）persons who come on board to do their business.
A.Receive B.Receiving C.Received D.receives
