Better English

1. technology you can wear/more wearables than just smartwatches/wearable technology 2. embellishment  3. B 4. A 
1. Possible answer: Loneliness is a state of being alone when you don't want to, and being unhappy; solitude is a state of being alone without, necessarily, a positive or negative element
The yellow submarine that stays in your head
1. the people accused in the scandal have not yet been convicted of a crime 2. (i) F
The yellow submarine that stays in your head