My mum was cooking,_____I was reading a book.用什么词?when还是as?为

When my mother ___home,I was reading a book. I was reading a book when my mother came home.When my mother I was reading a book （ ）the phone rang.A.before B.when C.as 英语同义句转换 My father was reading a book when I came in the room _____I remember,this book was written by Becky Wang.A As wel 请问这一题为什么选AYesterday I ________ when I was cooking. A. had my My father was reading newspapers__my mother was cooking 填whe My mum is reading a book；is I was ①reading a book ②in my room ③when my friend ④called me When后面的是从句吗?Mum was cooking when i got home可改成When mum was c My brother was watching TV_I was reading a book.A.if B.while My sister was reading a book while she was listening to the