Yes as a matter of fact they are.
It's very, very expensive
they are very expensive
very expensive very expensive
they are from overseas and they are very fast that is why they are very expensive
It is very expensive
Yes, dams are very expensive, and also very time consuming.
Exploration was very expensive.
well.......... yes it is very expensive
it is very expensive i think
Yes! Very expensive!
Yes it is very expensive.
yes VERY expensive