相关考题
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单项选择题
Spread a safety net（）the gangway.
A.on
B.over
C.by
D.under -
单项选择题
I shall （）the security patrol.
A.kept
B.keep
C.keeping
D.keeps -
单项选择题
Where is the captain? -（）.
A. Follow me
B. He’s in his cabin
C. Yes, he is
D. No, he isn’t
