Could anyone please help me with this exercise, Iam quite confused.

1. a wise man (a) wants a mark to shoot at
2. ignorance (b) cast their shadows before
3. many straws (c) is the mother of impudence
4. malice seldom (d) may bind an elephant
5. any excuse (e) turns chance into good fortune
6. coming events (f) come home to roost
7. curses like chickens (g) will serve a tyrant