Question

You____forget your umbrella. It's going to rain.must have tomustn't don't have to ​

Answer 1

Відповідь:Have to

Пояснення:

Answer 2

Ответ:

You mustn't forget your umbrella.It's going to rain.

Answer 3

The correct option is: mustn't

So, the complete sentence is: "You mustn't forget your umbrella. It's going to rain." This means you should not forget your umbrella because it's going to rain.