Help me. Choose the correst answers.

1. .... then they have travelled all over Europe and North Africa.
a. since   b.just   c.after

2. ...... is developmental condition that affects social relationships.
a. Autistis savant  b.Autism   c.Autistic.

3.The music for All Project is Sally's......
a. brainwave  b. brainchild  c.brainstorm