7、改为否定句)I__________________beentoMacaubefore.2.Hehasn’tcometoschoolbecausehewasill.(就划线部分提问)_____________hecometoschool?3.Iboughanewbikejustnow.(用just改写) I ____ just ____ a new bike. 4. We began to learn English three years ago.(改为同义句) We ____ ____English ____three years5. He has neve