Sarah is helpful at home.(改成否定句)
问题描述:
Sarah is helpful at home.(改成否定句)
有简单的规律或方法更好,
答
Sarch isn't helpful at home.
在BE动词后加 not 就可以了
很荣幸为您解答 欢迎追问没有be动词的话怎么办?如:I use a computer.谢谢那么就在实义动词之前加 doesn"t或者don't (这是要根据主语的单复数来确定的) 此外要记住,情态动词和BE动词是一样的 I don"tuse a computer很荣幸为您解答 欢迎追问如:. I use a computer I think he is at home now.怎么变谢谢可以改成:Ican't use a computer. 吗?