1. The light is bright enough for me to read a book.  

bright / read a book: It's not bright enough to read a book. (Không đủ sáng để đọc sách)
old / understand the story: He is old enough to understand the story. (Anh ấy đủ lớn để hiểu câu chuyện)
fast / catch the bus: I ran fast enough to catch the bus. (Tôi chạy đủ nhanh để bắt xe buýt)
high / touch the ceiling: He is not tall enough to touch the ceiling. (Anh ấy không đủ cao để chạm trần)
warm / go outside without a coat: It's warm enough to go outside without a coat. (Trời đủ ấm để ra ngoài mà không cần mặc áo khoác)