Rearrange the words to make a meaningful sentence

II. Rearrange the words to make a meaningful sentence. (0,4 pts)

5. will /Robots / humans /in /30 / replace /years' time.

-> __________________________________________.

6. was /He /that / said /he /doing / in /science/ at school / well /then.

-> __________________________________________.

7. footprint /Using / can /reusable bags /help/ us reduce our carbon

-> __________________________________________.