1.________by a group of children，the old man was delighted.
A．Surrounded B．Surrounding
C．To be surrounded D．To be surrounding
2.I called the airline to________my flight reservation a week before I left for Toronto.
A．see B．consult
C．confirm D．strengthen
3.The new teacher made a good________on the students by her rich knowledge and humorous talk.
A．feeling B．effect
C．impression D．sense
