When the police arrived, the crowd made off _____ all directions.
| A．in | B．to | C．at | D．for |
In order to make our city green, ____.
| A．it is necessary to have planted more trees | B．our city needs more trees |
| C．we must plant more trees | D．many more trees need to plant |
Tom doesn’t _______ Ted’s plan for the party.
| A．think bad about | B．think good over | C．think highly of | D．think better over |
The films produced by Disney _____ all over the world.
| A．are used to show | B．used to be shown |
| C．are used to be shown | D．used to show |
______ his homework, he went on to preview the next lesson.
| A．Doing | B．To do | C．done | D．Having done |
In 1989 an international law was passed to stop people _____ waste into the sea.
| A．to put | B．putting | C．not to put | D．not putting |