單項選擇題The officer of the watch（）a good lookout on the bridge.

A.keep
B.keeping
C.keeps
D.is keeping


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1.單項選擇題In the afternoon he often removes rust or（）some paint work.

A.do
B.did
C.does
D.to do

2.單項選擇題Smith always（）a lot of things to do during the voyage.

A.has
B.have
C.there is
D.there are

3.單項選擇題On the forecastle deck,the chief officer and the bosun（）sharp lookout.

A.to keep
B.are keep
C.is keeping
D.are keeping

4.單項選擇題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

5.單項選擇題The third officer（）at the telegraph and also writing on the log.

A.work
B.is working
C.are working
D.was working