If the captain ____more careful his ship would not have been sunk.A.should beB.were to be

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If the captain ____more careful, his ship would not have been sunk.

A.should be

B.were to be

C.Were

D.had been

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。