, the forest fire would have been discovered much earlier.
A．But for their careB．Had they been more careful
C．Without their careD．If they were careful
B
考查特殊句式。A.要不是他們的關(guān)心    B.如果他們更謹慎點
C.沒有他們的關(guān)心    D.如果他們很小心。
結(jié)合下文，森林大火會被更早的發(fā)現(xiàn)�？芍xB最符合語境。
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