1.  A second-hand tractor front axle would have cost a lot more.

2.  As I mentioned earlier, it will cost a lot of money.

3.  But replacing it with something more attractive is going to cost a lot more than anyone anticipated.

4.  Did it cost a lot to fly to Rio?

5.  I managed to find the bike I wanted but it cost a lot.

6.  It costs a lot of money to go to medical school, you know.

7.  It costs a lot to heat these offices.

8.  On the negative side, it will cost a lot.

9.  That hi-fi looks as though it cost a lot of money.

10.  Their hair products are really good but they cost a lot.