Passengers are required to _____ seated until the plane comes to a complete stop.
| A．leave | B．get | C．keep | D．remain |
99. If you study harder, you will catchthe others in the class.
| A．up | B．up with | C．up of | D．To |
98. We have friends ____ the world.
| A．through | B．in from | C．throughout | D．all over in |
97. When he was in America, he made a journey of seven hundred miles _____ purpose to get a glimpse of the Niagara Falls.
| A．on | B．by | C．with | D．For |
96. It is reported that the thirty-ninth president of America Jimmy Carter has won the Nobel Prize _____ peace in the year of 2002.
| A．in | B．on | C．at | D．For |
95. The scooter(滑板车) has been popular _______ a lot of children since the year before last.
| A．by | B．for | C．in | D．With |