Question

_________, the forest fire would have been discovered much earlier.

A．But for their care	B．If they were careful
C．Without their care	D．Had they been more careful

Answer 1

D

考查虛擬語氣。本題考查與過去事實相反的虛擬語氣，從句Had they been more careful =" If" they had been more careful。句意：如果不是他們更小心點，森林大火將會更早的被發(fā)現(xiàn)。