英语翻译请见下面：学生们今天早上九点钟的时候在图书馆吗？他们不在。八点四十五分时她将有空。昨天下午孩子们有科学课吗？没有

1）学生们今天早上九点钟的时候在图书馆吗?
不,他们不在.
Were the students in the library 9 o'clock this morning?
No,they weren't.
2)八点四十五分时她将有空.
She will be free at 8:45?
3)昨天下午孩子们有科学课吗?
没有,他们有一节数学课.
Did the children have science class yesterday afternoon
No,they had a math class.

The students at nine o 'clock this morning in the library?
No, they aren't.
45 points she will be available at 8 o 'clock.
Yesterday afternoon children have a science class?
No, they have a math class

1.Were the students in the library at 9 o'clock this morning?
No,they weren't.
2.She is free/available at 8:45?
3.Did the children have a science class yesterday afternoon?
No,they had a math class.