3道英语句型转换

题目

3道英语句型转换
1.We don't allow smoking in our house.[被动语态]
Smoking ________ ________ in our house.
2.We were both safe on the ground
________ ________ ________ were safe on the ground.
3.The fire must be outside
The fire must be outsede,________ ________

答案

isn't allowed
Either of us
isn't it