老师刚说完，教室里就沸腾了。锅里的水沸腾了。

你好，很高兴为你解答

He came here a month ago.

He has been here for a month.

I bought the book last week.

I have had the book for a week.

I joined the army last year.

I have been in the army for a year.

常见的有

rrive→be here begin(start)→be on

die →be dead come back→be back

leave →be away (from) fall ill(sick,asleep)→be ill(sick,asleep)

get up→be up go out →be out

finish →be over put on →wear 或be on

希望对你有帮助

正在进行时的英语句子：He is dancing and singing.

I am reading English.

英语中表示现在正在进行的时态是现在进行时，结构是be+ving形式。

五年级的现在进行时句子：例如：

1. He is reading a book.

2. She is listening to music.

3.The cat is sleeping under the bed.

4.We are cleaning our classroom.

5.They are playing football on the playground.

Are you playing computer games?