把下列句子合并成含有宾语从句的句子

He wants to go back to England.Tom says.
-> Tom says that he wants to go back to England.
She will leave a message on Mr Wu's desk.She says.
->She says that she will leave a message on Mr Wu's desk.
They traveled by train last time.i hear
->I hear that they traveled by train last time.
She can't come today.i think
-> I think she can't come today
where is the headmaster?i want to know it.
-> I want to know where the headmaster is.
he can't work out this difficult math problem.i think
->I think he can't work out this difficult math problem.
the students of class one work hard.the teacher said to us
->The teacher said to us that the students of class one worked hard.
the earth is bigger than the moon.the boy said to us
->The boy said to us that the earth is bigger than the moon.
the diver said to them.people here like to take buses
->The diver said to them that people here liked to take buses

你好:
1.He said。He doesn't want to move to the city。
He said that he didn't want to move to the city.
2.The girl asks. Is it necessary to learn computer?
The ...