1.why is framton nuttel visiting the sappletons in the country?

So Nuttle visits Mrs. Sappleton because she is one of the people that his sister has said that he should visit. He should visit her to prevent his mental issue from recurring and/or getting worse.

hope this helps :)

tending to cause harm

shakespeare was famous for writing in iambic pentameter, which is a specific way of rhyming sonnet lines in ten syllables. there are also forms of unrhymed iambic pentameter, as in macbeth, with the noble characters.