【题目】It was really very dangerous. One more step, ______ the baby would have fallen into the well.
A. or B. so C. and D. but
在线课程【答案】C
【解析】
试题分析:句意: 情况真的很危险,如果在往前走一步,这个婴儿就可能会掉到井里。A. or或者;B. so因此;C. and而且;D. but但是。本句相当于祈使句或名词,and/or 将来时的句子,这里是虚拟语气的表达。