想知道别人看到多少只鸟你应该问: A. How many books do you have? B. How many birds can you see? C. How are you?
()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