10. If it had not started to rain, we________to the museum

a)will have walked

b)would have walk

c) would have walked

11. If iron gets wet, it

a)broken

b) rusts

c) gets better

12. We would have______in the sea if there had_______so many sharks there.

a)swimming / not be

b)had swum / been

c) swum / not been