Based on the question given this is the answer:
He thinks she is worried but optimistic about her husband's
health.
In the central theme of the story, it is given a fact that
the belief of superstitions is something to be afraid of, although people have
taken a wise decision to trust on medicinal treatments.
Greetings..! The given sentence is in Active Voice. So , to convert it into Passive voice , we need to make its subject the object , as : By whom was the last cookie eaten by ? Here,the tense of verbs have
Answer:
The interpersonal level, which accounts for the pragmatics.
The representational level, which accounts for the semantics.
The morphosyntactic level, which accounts for the syntax and morphology.
The phonological level, which accounts for the phonology of the utterance.
Explanation: