Question

7. Darkness        before the traveler could find shelter for the night.

   A. set in   B. set down

   C. set against   D. set forth

Answer 1

7. A set in指"(不良天气、不愉快之事等) 开始，来临"。例如：Winter seems to be setting in early this year,set down意为"放下;写下5让..... 下车"；set against意为"把……和……加以比较/ 权衡;使和……为敌"；set forth意为"展览，陈列；阐明,说明"。