你自己挑吧.
1.It was kind of her sister to invite him to stay a little longer.
2.It was a pity that you couldn't pass the final exam.
Someone is ringing the doorbell.Go and see who it is.有人在按门铃.去看看是谁
What’s this?这是什么?
It’s a book.这是一本书.
What a long way it is from Beijing to London!从北京到伦敦真远
It's best to plant trees in spring because it's warmer.春天是植树的最佳时节,因为天气更暖和
It was I who met him in the park last week.是我上星期在公园遇到他的.
The frog is not a warm-blooded animal.It is a cold-blooded one.青蛙不是温血动物,它是冷血动物.
My pen is missing.I can't find it anywhere.我的笔丢了,我哪儿也找不到它了.
I won't be back tonight.Please tell my wife about it .我今晚不回来了,请你向我妻子说一声.
I was disappointed with the film.I had expected it to be much better.我对这部电影很失望,我曾盼望它更好.
Tom's mother kept telling him that he should work harder,but it didn't help.汤姆的妈妈不停地告诉他要努力,但这没起作用.
-Who is knocking at the door?—谁在敲门?
-It's me.—是我.
I had a talk with the student.It was very helpful to her.我和那个学生谈了次话,对她非常有帮助.
It happened during my stay in the United States.事情发生在我在美国的时候.
-Whose exercise book is that?—谁的作业本?
-It's his .—是他的.
-What's the time?—“几点了?”
-It's half past ten.—“十点半”（指时间）
It is late autumn now.现在是深秋.（指时间）
