几道英语问题 They needn't ...

这道题的正确答案是：
句型转换,一空一词.
They needn't pay for their meals at work.(同义句转换)
They (don't have to) pay for their meals at work.
needn't= don't have to 没必要
I have to clean all the windows this Friday.(改为一般疑问句)
(Do you have to ) clean the windows this Friday?
Tina is talking with Fred.(对画线部分提问,画线：Fred)
(Who is) Tina (talking with)?
v

1) don't have to
2) Do I have to
3) Who is Tina talking with?
如果对你有帮助，请采纳，谢谢~

1.don't have to
2.Do I have to
3.who is talking with

你好，很高兴为你解答。
1、don't need to
2、Do I have to
3、Who is talking with
如果还有疑问，请继续追问，如果对你有帮助，请及时采纳，谢谢。