Ah, nothing like a movie villain who is rotten to the [helt och hållet] !

Hint: We need a noun here! An idiomatic expression.

core

Any remaining [fel] are the author’s responsibility alone.

errors mistakes

Info: ”Errors” is better in formal English, such as this standard formula in books.

Morse barely [besvarade] the stranger’s greeting.

acknowledged answered returned

Info: Find a synonym for “answered”!

Mort was now [planerar] about how to get rich quick.

Hint: This requires an -ing form!

scheming planning

Over night, her condition [förändrades] for the worse.

Hint: Find a synonym for “changed”!

altered changed

The Christmas lights were connected in groups of 8, in [seriekoppling] .

Hint: Note that there is no article here.

series