Go back to the text and re-read a passage where Watson made a discovery. If Sherlock praises him, you've got your answer. I'm sorry if this wasn't much help, but I don't have any text to go off of.
Answer:
However
Explanation:
However will transition to a different point in a speech. The other options would reference sentence one.
Answer:
the sounds of screams for help.
Explanation:
<span>The main theme of John F. Kennedy’s Inaugural Address was to provide a peaceful solution to every problem</span>
