1. A source of a material is the place where it _________________.
a) is used b) comes from
2. If a fish is consumed by someone, it is _______________.
a) eaten b) cooked
3. A _________________ is an example of jewelry.
a) ring b) dish
4. If water is polluted, it is probably _________________ to drink.
a) safe b) unsafe
5. A brilliantly colored fish is ____________________ to see.
a) easy b) difficult