單項(xiàng)選擇題I（）major damage to navigational instruments.
A.has
B.had
C.have
D.have to
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A.to
B.at
C.in
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2.單項(xiàng)選擇題We（）let go port anchor.
A.are going to
B.is going to
C.were going to
D.was going to
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