Student or Learner
Are the following sentences natural to a native ear?
1. I donít care if you have to/had to spend the whole day to fix this.
2. Were you able to get that remote control to work?
3. So, what is involved in a detention? ( I wanted to know what goes on in a school detention)
Do you think 'a' before 'detention' in #3 is optional? Why?