Question

GUESS THE WORDS
1. To study a subject to discover new information .
2. To watch a person or activity to make sure everything is done safely and correctly
3. To make, manufacture or grow something .
4. To keep a road, machine, building, etc. in good condition .

Answer 1

Explanation:

1. Research

2. supervise

3. construct

4. maintain

Answer 2

Explanation:

answer is To

it means that to whom you are talking for.