carelessness is often the ____of fires

问题描述:

carelessness is often the ____of fires
A reason B cause C decision D effect
选什么 为什么

答案是B.从语法角度说,1 如果选用A,句子就成了--------Carelessness is often the REASON FOR fires.2 如果选用D,句子就成了--------Fires are the effect / result of carelessness.3 c 不符合你的语境.Andrew want...because I'm ____to forget.likely 还是 possiblebecause I'm likely to forget.===because it is possible for me to forget.