I was reading a book （ ）the phone rang.A.before B.when C.as

I was reading a book （ ）the phone rang.A.before B.when C.as The phone rang （ ）I was doing my homework?A when B while 为什么 I was reading a book at home.the telephone rang. when I was reading the newspaper,the phone rang.与 I was read I was reading a book at home.(S )the telephone rang.I rememb I was reading a book at home.S the telephone rang.(首字母为S,根据首 The door bell ＿＿when I was leaving.A.rang B.ringing C.rings The door bell _____ when I was leaving.A rang B ringing C ri I__my clothes,and the phone rang A whash ,B washed ,C am was I _____ my clothes ,and the phone rang.A ,washed B ,was wash I was reading ____ (A when,B as)the light went off. just as I was leaving,the phone rang again