( )--How old are you? -- A. I'm fine, thank you. B. I'm 9. C. I'm Lily.
()It’s easy to _____ mistakes with English words. A. make B. makes C. making
()They ____ the caps on . A. put B. puts C. putting
()What’s _____ the bag? A. into B. in C. at
()Sam came ____ the classroom. A. on B. at C. into
()Why can’t you ____ it ? A. see B. saw C. seeing