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一般现在时I have a book.I get up at six everyday.We have many classes at weekdays.
I am happy.I am a boy.It smells good.
一般过去时I went to school yesterday.I had five classes this morning.I ate an hamburger just now.
I was a student two years ago.You were very lovely in your childhood.She bee more and more beautiful.
现在进行时I am watching TV now.
She is reading a book.
Someone is knocking at the door.
现在完成时 My brother has finished his homework.
My classsmate has already read this book.
You have not been to the seaside,have you?
