I. 单项选择（30分）
1. The traffic accident happened ____ a Sunday morning.
A. on B. in C. at D. from
【解析】选A。此题考查时间介词的用法。在具体的某一天用on。
2. —What’s the ____ like today? —Cloudy.
A. sky B. air C. and D. weather
【解析】选D。此题考查天气的问法。
3. Danny is ____ to make us all ____ .
A. enough funny; laugh B. enough funny; to laugh
C. funny enough; laugh D. funny enough; to laugh
【解析】选C。此题考查enough的用法和make sb. do sth. 的用法。即enough修饰形容词和副词时要后置；使某人做某事要用make sb. do sth.。
