可不可以填 and 为什么

this is ____i want.可不可以填which.为什么 可不可以填成in ANDY AND SALLY [ ] IN CLASS TWO,GRADE THREE 括号中可不可以填IS (eat)______more healthy food and you will be healthy、请问可不可以填 and可不可以连接句子 let me show my room ()you为什么填to?for可不可以? it's good for us(to eat)an apple every day.括号里为什么要那样填?可不可以填e between...and...中的and可不可以换成with? Tom and Jim ____ 中间为什么要填have lucy and lily have opposite viewsand interests为什么填interests A postman sends letters and parcels______ people为什么填to our hair ( ) black and straight.这里填什么?为什么