when mother came in,the boy pretended____(read)空该怎样填be reading

I stopping playing games when my mother came in. when mother came in,Mary was playing the piano请问可以改为when mother came in,Mary was playing thewhen mother came in,Mary was playing the piano请问可以改为when Mary was playing the piano,mother came Mary_______（listen）to the radio when her mother came in.要原因 when mother came in,the boy pretended____(read)空该怎样填be reading The little boy pretended ( ) when his mother caThe little boy pretended ( ) when his mother came in.A.sleeping B.asleep C.to asleep D.to be asleep my mother was watching TV ______my father came in.A when B as C because D while _____ you _____(write) a letter when your mother came in ?第一个空是填were,可我不知道为什么. my mother was cooking dinner when my father( )in 填什么啊came was coming 3Q He had died when his mother came 这句对吗 Mother came in (with) a cup of coffee in her hand when I felt sleepy.A.bring B.take c.with D.to bring He stopped crying when his mother came home yesterday evening.He ____ crying ____ his mother came home yesterday evening. 有谁能解决这道题:He pretended when his mother came in.A.to be sleeping .B.to be slept .C.being asleep . _______ her mother _______ she was at home when the thief came in.A Each,and B Neither,or C Neither,nor when his mother came in,the boy pretended____(do)his homework为什么填 to be doing 理由 这里面的 be 是被动还是什么 what were you doing when he came in?____ my mother with her housework.A.Helped B.Help C.Was helping D.Helping My mother was busy preparing dinner in the kitchen（ ） my father came back from workA when B while C until I was sleeping when my mother came in分别改成特殊疑问句,一般疑问句及回答,否定句,对动词sleeping提问 when his mother came in,the boy pretend___to sleepA.going B .to be going C.to go D.gone选什么,为什么