单项选择题
A．the students to fly the plane all the time B．all students to fly the plane C．the students who were not frightened to fly on their own D．some students to fly a little while
A．was a very proud person B．was helpless C．did not like asking people for favors D．wanted to live without her husband
A．lack of care B．old age C．the small fish tank D．lack of water