COMPLETE:

1) I haven't eaten anything ______ breakfast *

a) since
b) just
c) for

2) have lived in London _______three years. *
a) since
b) for
c) just

3) Mary has been saving her money_______many years. *

a) for
b) just
c) since

4) Mary has been saving her money _______ she was a child. *

a)for
b) already
c) since