People should avoid the _______ of dumping waste into the sea.
Answer: C. practice
Explanation: "Practice" refers to a repeated or habitual action. In this case, it refers to the harmful practice of dumping waste into the sea.

They learned the _______ of weaving.
Answer: C. craft
Explanation: "Craft" refers to a skill or activity that requires special knowledge, often traditional or artistic, such as weaving.

They try to keep many traditions _______.
Answer: A. alive
Explanation: "Alive" in this context means continuing to exist or be practiced. Keeping traditions "alive" means preserving and continuing them.

I can recognize your handwriting anywhere — it's _______.
Answer: C. unique
Explanation: "Unique" means one-of-a-kind or special. The sentence suggests that the handwriting is distinct and easily recognizable.

The novel was written by the _______ local writer.
Answer: B. best-known
Explanation: "Best-known" means famous or widely recognized. The sentence refers to a writer who is well-known for their work.

A(n) _______ diet is essential for healthy growth.
Answer: B. balanced
Explanation: A "balanced" diet refers to one that contains a variety of different foods in the right proportions for health and growth.