Answer:
join the ends of two pieces of metal or timber by notching them so they fit over or into eachother
Soy (yo form, present tense) - use when describing traits about yourself (permanent traits, not thoughts/feelings/locations/etc)
Era (yo/el/ella/usted form, past tense) - directly translates to 'was.' use when describing something in the past
Circle the highlighted part
They are all nouns, places where you can pick stuff up from