He said that the new uniforms (would )make both the students and parents happy

위글의 ( ) 와 같은 용법으로 쓰인문장은?
1 Would you like to come with us?
2 I explained that an ambulance whould be coming soon
3.He would disappear for weeks on end
4. What time whould you like your evening meal?
5 I would rather come with you
답이 왜 2 번인지 무슨용법을 가르키는지 ㅠ 자세히 좀설명좀 빠른답변부탁해요