Question

英语，大家帮帮我

改句子：
（1）Mary study English
进行时：
一般现在时：
一般过去式：
将来时：
现在完成时：
（2）I writ a book
进行时：
一般现在时：
一般过去式：
将来时：
现在完成时：
（3）The students buy a Present
进行时：
一般现在时:
一般过去式：
将来时：
现在完成时：

Answer 1

（1）Mary study English
进行时：Mary is studying English.
一般现在时：Mary studies English .
一般过去式：Mary studied English .
将来时：Mary will study English .
现在完成时：Mary has studied English .
（2）I writ a book
进行时：I am writing a book.
一般现在时：I write a book.
一般过去式：I wrote a book.
将来时：I will write a book.
现在完成时：I have written a book.
（3）The students buy a Present
进行时：The students are buying a Present.
一般现在时:The students buy a Present.
一般过去式：The students bought a Present.
将来时：The students will buy a Present.
现在完成时 The students have bought a Present.