... sentence below. Idioms from previous lessons are indicated by number. 1. In computer code, a binary number such as 10 010 0 01 represents a letter, number, or other character on a computer keyboard. ... fundamentally 9. close call i) finally, absolutely 10 . in case j) narrow escape from danger 11 . for once k) considering everything 12 . at heart l) having contact B. In the space provided, ... (Lesson 11 ) c. looked on 8. While Jerry was walking down the sidewalk, he unexpectedly found a twenty-dollar bill lying by the side of the road. a. came across b. came to (Lesson 13 ) c....