The government placed _____ on the numbers of foreign cars that could be imported.
| A．limitations | B．restraint |
| C．requirements | D．restrictions |
___ he is going to do it or not does not matter .
| A．Whether | B．If | C．When | D．Why |
Hearing the news, Lillte Jim burst into ___
| A．laughing | B．laughters | C．laughter | D．be laughing |
My sister became famous ___ her first short story “The Moon”.
| A．in | B．for | C．on | D．about |
When Lincoln was young , he helped his father ___ the farm.
| A．in | B．on | C．at | D．for |
Tom didn’t go to school __ the rain.
| A．because | B．because of | C．as | D．for |