（while when） she is at home用哪一个

（while when） she is at home用哪一个 She is very hard-working,-----he is rery lazy.这个空为什么是while而不是when? she is enjoying her job____ she has got more responsibility.A now that B as though C while D when She is very hard-working,_____ he is very lazy.A.when B.that C.which D.while she ______herself while she ____off the bus .is therer ______in the bag?No,there is _____.when he _____i____a bath .have you ever ______Shenzhen? She is very hard-working,_______ he is very lazy.应选什么?为什么?A.while B.when C.as D.if 答对给财富 1.（ ）she came in,l was writing a letter A.When B.While C.since D.where2.( )_____ you think you konw nothing,you begin to know somethingA.where B.when C.before D.While 3.( )_____ there is no rain,lt's difficult to plant treesA.wher she is enjoying her job____ she has got more responsibility A now that B as though C while D whenA now that B as though C while D when She looked after my baby while I was away为什么用while,不用when? __Mary is good at Math and Chinese,she never does well in P.E.A.When B.As C.Since D.While she sang as she dance 中as 为什么不能用while或when She always smiles when she is happy.（画线部分提问）smiles画线 an aspirn everyday while she is away求不要直译 Strike while the iron is hot.为什么用while而不用when when she is on a boat She is fatter now. She _____too much. A are eating B must have eatenFather came ______ Sally was slipping on the floor. A. while B. just as C. when D. as My sister was reading a book while she was listening to the radio能不能用when 代替 while Would you please give her some suggestions?She is now together with a boy whom she has no feeling for,while on the contrary,she is always caring much about the one whom she used to go with.She wanna go to him when told about his true feeling for her,