1、根据括号部分提问:We mustn't (play with fire).

问题描述:

1、根据括号部分提问:We mustn't (play with fire).
1、根据括号部分提问:
We mustn't (play with fire).
2、换种方式,意思不变:
Don't start campfires!

What mustn't we do?
No campfires.