问大家几个英语问题？我是“英痴”，看不懂。

1.This is my grandfather.(改为否定句）
This is not my grandfather.

2.sister(复数）his（人称代词）photo（复数）my（人称代词）
sisters, him, photos,I.

3.Is Mary your sister?(作否定回答）
Mary is not my sister.

Are these his daughters?(作肯定回答）
Yes, these are his daughters.

That's my friend.(改为复数形式）
These are my friends.

Are these your cousins?(改为单数形式）
Is this your cousin?

4.给你朋友写个便条，让他帮你从学校拿些东西到家里来，并写明东西在哪里。
John, can you bring me my textbook? I left it in our classroom. It is in the drawer of my desk. Thank you.

This isnot my grandfather.(
2.sisters ）his（he ）photos）my（ me）
3.Is Mary your sister?(作否定回答）no she is not.
Are these his daughters?(作肯定回答）yes, they are.
That's my friend.(改为复数形式） they are my friends.
Are these your cousins?(改为单数形式）is it your cousin
4.给你朋友写个便条，让他帮你从学校拿些东西到家里来，并写明东西在哪里。 jhon.
i will receive a bag today . but now i have import