1,____ ,I would have phoned you , a, if I knew it b,had I known it c, if I know it d, did I know it. 2 ,it was because of bad weather_____ the football match had to be put off. a, so b, so that c why d, that 3, scarcely____ the room ___ the phone rang. a, I had entered , when b, had I entered , then c, had I entered , when d, have I entered , when , 选哪一个并说明理由,谢谢。
参考资料:英语牛人团