Tick the correct sentence.

1. a. We had a exciting holiday in the mountains.
b. We had an exceting holiday in the mountains.
2. a. Granny had not had a mobile before she was sixty.
b. Granny did not had a mobile before she was sixty
3. a. She had not watched TV before her parents bought one.
4. a. You should not play so many computer games.
b. You should not to play do many computer games.
5. a. Alex and me go skiing every winter.
b. Alex and I go skiing every winter.
6. a. Is this your bike? Sure, it is mine.
b. Is this your bike? Sure, it is my.