填空题。
1. The question is so hard that _______students can answer it. (用a few或few填空)
2. —Is the new rule working?
—Yes, ______books are stolen (被偷). (用ra few或few填空)
3. Don't worry, we still have ______minutes left. (用a few或few填空)
4. There are so ______trees on the hill. The birds can't even find a place as thei home.
(用a few或few填空)
1. few 2. few 3. a few 4. few