.... well, not quite perfect - you'd still lose marks for it in an exam!
Don't forget that you need an article before 'bus'.
There's no train, so we'll have to make do with the bus.
There's no train, so we'll have to make do with a bus.
The bus isn't as comfortable or as convenient as the train, but 'it'll do' - which means it's ok because it'll still get you where you want to go. So you 'make do with the bus' - you accept it because it does the same job and there isn't any alternative.