4 Ask and answer the questions
1 people/go/on holiday in space / this century?
A:
().
B:
2 people / travel / to Mars / in a decade?
A:
B:
-(X)
3 robots / think/as well as humans/in 50 years?
A:
B:
- (x)
4 scientists / invent/a teleportation machine /
one day?
A:
B:
(ſ)
