I ) the correct form of world
1) I've left message, but there's been me no....... (respond)
2) If we don't ...... on electricity, there will be power out (economy)
3) The child's ..... was unacceptable ( behave)
4) The internet is becoming a...... tool for feachers (use)
5) He doesn't have a moblephone , so it's .... for him to contact his friends ( convenience)
Loga
Sinh Học lớp 12
