Mng giúp em kèm giải thích nha, em đang cần gấp ạ I.Điền giới từ 7. They are trying to provide necessary facilities ___________ those who are ____________ need. II.Tìm lỗi sai và sửa 1. They are presently discussing about the ways of stopping the violence in schools. ________________ 2. ABC is a youth organization which builds character and encouraging good citizenship and personal fitness.  ________________ 3. My brother tried to learn Japanese at a night school, so he gave up after 2 months.  ________________ 4. The voluntary organization was established last year has more than 40 members now.  ________________ 5. He sounded so unhappily when someone stole his car yesterday  ______________________