单项选择题
A.keep B.keeping C.keeps D.is keeping
In the afternoon he often removes rust or（）some paint w...
单项选择题In the afternoon he often removes rust or（）some paint work.
A.do B.did C.does D.to do
Smith always（）a lot of things to do during the voyage.A...
单项选择题Smith always（）a lot of things to do during the voyage.
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
