Exercise 2: Rearrange the words to make meaningful sentences. Mind the position
certainty.
1. vehicles/be/will/ flying / certainly/common/50/years/in/think/I
2. astronaut / to be / he / perhaps / will / train / an
3. solar panels/we/put / probably / on/ will / building / every
4. definitely / electric vehicles / 50 years / more than / petrol vehicles / will /peo
5. probably /live/some/in/people/the/ space stations /on/will/future