1 . 烟雾报警器可能会因香烟、烹饪和壁炉产生的烟雾被触发。
Smoke alarms can be set __________ by smoke from cigarettes, cooking, and fireplaces.

2 . 一次次的失望让他濒临绝望。
Repeated failures have left him __________ despair.

3 . 这些温泉的颜色从绿色到鲜艳的红色和橙色。
The hot springs’ colors range from green __________ a brilliant red and orange.

4 . 青春是人生长河中最美好的一段，人人都要好好把握它。
Youth is the best part of the long river of life, so everyone should take advantage __________ it.

7 . 我需要一两个人帮我安装这台设备。
I need one or two people to help me set __________ the equipment.

8 . 曲棍球教练对他的认可鼓舞他参加了球队的选拔。
The hockey coach’s recognition encouraged him to try __________ for the team.

9 . 我们的钱只够撑过接下来的3个月。
We have only enough money to carry us __________ the next three months.