If there were no steel,there ( ) no train,cars or planes.A.will beB.would beC.have beenD.are

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If there were no steel,there ( ) no train,cars or planes.A.will beB.would beC.have beenD.are
If there were no steel,there ( ) no train,cars or planes.
A.will be
B.would be
C.have been
D.are

If there were no steel,there ( ) no train,cars or planes.A.will beB.would beC.have beenD.are
B 虚拟语气