Question

_____ days has this oven not been working”, asked the repair man.

1. For how many

2. How long for

3. What length of

4. How many time

Answer 1

1.For how many days..

Answer 2

Hey there,

Your answer.

Question -》_________ days has this oven not been working", asked the reapair man.

Answer -》For how many days has this oven not been working",asked the repair man.

-》Option 1. is correct

:-) Hope it helps !