Answer:
1. Doing a mental activity
2. Being a participant
3. Feeling enabled to do something
Step-by-step explanation:
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1. The first one will be doing a mental activity because the person is thinking about memory, and which had occurred in the past which is a mental activity.
2. The second one will be being a participant because the person referred is participating in an event along with her sister.
3. The third one will be feeling enabled to do something because, the person is getting motivated by their sister to do a