题目

Rewrite the sentence(按要求改写下列句子，每线一词)1.You can climb the tree. (改为否定句)You________ ________the tree. 2.The hens eat corn. (根据划线提问)________ ________the hens eat? 3.This is a red scarf. (改为复数句)________ ________red________. 4.I have an orange kite. (把I改成she，其余作相应变化)________ ________an orange________. 5.Please walk on the grass. (改为否定句)Please________ ________on the________.　　两种物质核外电子个数之比为5∶1的是(　) 　　A．NＨ