Underline the correct alternative.
1 When 1 first heard English, I not able/not could/couldn't understand anything.
2 Even when I'm stressed, I'm usually able to/can/able sleep.
3 I recently had a problem but I can able to/was able to/ managed solve it.
4 I 'm not able/was able not/ wasn't able to do the job of my dreams (not yet, anyway).
5 Last weekend I managed to/ managed/am managed to relax.