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單項選擇題

There we shall call at some ports（）and discharge some cargo.

A.to loading
B.be loading
C.loading
D.to load

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單項選擇題

We shall（）some ports in Canada.

A.call at
B.call on
C.call in
D.call up

單項選擇題

Our ship（）loading yesterday morning.

A.finish
B.finishing
C.finished
D.has finished

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