Are these sentences correct?/...you had better think again/ in one hour's time

[Alexandro]

Hi everyone,

Can you say: (1) 'If you think I appreciate you flattery, you had better think again!'

Can you say:(2) 'I would like you to do your homework in hour's time.

Thanks
Alexandro
_________________
'Everyone can mistakes! After all, nobody's perfect.'

[Alan]

Hi,

(1) is fine.

(2) needs to be 'in an/one hour's time'.

Alan
_________________
English as a Second Language
You can read my ESL story Present Simple

[Alexandro]

Thank you so much Alan!
_________________
'Everyone can mistakes! After all, nobody's perfect.'

[E2e4]

Teacher Alan, I'd like to ask you a question because this is not clear to me.
Why "hour's" and not "hour"? Thanks

[Alan]

Hi,

This is the time/duration of one hour.

Alan
_________________
English as a Foreign Language
You can read my EFL story Progressive Forms