单项选择题
A.has B.have C.there is D.there are
On the forecastle deck,the chief officer and the bosun（...
单项选择题On the forecastle deck,the chief officer and the bosun（）sharp lookout.
A.to keep B.are keep C.is keeping D.are keeping
The stevedores（）load your ship in a few days.A.is going...
单项选择题The stevedores（）load your ship in a few days.
A.is going to B.are going to C.was going to D.are go to
The third officer（）at the telegraph and also writing on...
单项选择题The third officer（）at the telegraph and also writing on the log.
A.work B.is working C.are working D.was working
