Complete these sentences with used to or didn't use to?
Complete these sentences with used to or didn't use to. 1. I__ play the guitar, but I do now 2. I __ ride a bike, but I don't any more. 3. __ collect estamos, but I don't any more. 4. I __ enjoy getting up early, but I do now. 5. I__ be worried about the environment, but I am now. 6. I __ be afraid of flying, but I'm not anymore. 7. I __ know how to use a computer, but I do now.