You may look for the definition of the word in a dictionary.
Based on my interpretation of this website, I believe it's the astronomers. :)
C) <span>He doesn't understand the directions Mr. Pennycuff gave him..
Hope this helps~!
~[Emototheextremo]</span>
Answer:
Third Option:
“I just had my car keys, but now I can’t find them anywhere. Has anyone seen my keys?”
Explanation:
First, the comma separates the now from the keys statement. This allows the sentence to flow more smoothly.
Second, the ”Has anyone seen my keys?” Is a question — in which it needs to be sepearated from a statement; “...but now I can’t find them anywhere.”
Answer:
The second missed out full stop at end.
The third answer is wrong as however is in lower case.
The fourth is as well as wrong the however is in lower case.
The last missed out full stop.
So, the first is correct as however dont really nessasarily need comma.