Re bonjour je n'ai pas compris c'est deux exercices aidez moi vraiment s'il vous plaît

Ex 3 : Déduire le sens de chaque mot souligné :
1) Gangs of poachers were killing the elephants. What is a poacher? In Africa, it means a thief who kills animals without a licence. Poarcher =
2) Caroline got pregnant and gave birth to a baby when she was 16. Pregnant =

Ex 4 : Deviner le sens des mots soulignés en s'appuyant sur l'indication donnée par les mots "and, or, but".
1) I felt quite happy and cheerful again. =
3) I'm not jealous or resentful of him. =
2) He didn't hurry but moved sedately along the road.=
4) She was offered a job in our company but she turned it down. =