The letters for the boss___________ on his desk but he didn’t read them until 3 days later.
| A．were put | B．was put | C．put | D．has put |
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 |
94. If you don’t believe me, you’d better go to have a look at it _____ person.
| A．in | B．on | C．at | D．With |
93. The diligent student refused the help of others and insisted on working out the difficult maths problem _____.
| A．on his own | B．in his own | C．of his own | D．for his own |