Distrust:
disbelief
doubt
misgiving
wariness
Promote:
advertise
promote
Reassuring:
comfort
encourage
inspirit
Welfare:
benefit
well-being
I think 1 is a full sentence, but I'm not too sure.
2 is a fragment, you can write something like "tom stepped from the boat after a rugged trip across the Atlantic"
3 is a full sentence, 4 is a fragment but I don't know really how to rewrite it.
5 is also a fragment and you could write something like "the cars hood, hot from the sun's ray burned to touch"
