A. There should be an apostrophe on the it's, because it is saying, "only some of it is clean and safe enough to drink." The apostrophe should be on that word because it breaks the word down into it is, which is correct in the sentence.
Everyone 
done his or her homework.
Explanation:
Everyone is singular and, therefore, require singular verb.
Answer:
I'd say D
Explanation:
B is wrong (clearly), C is to... straight foward.... and A is a possibility but I believe its D.
Answer:
yemi thought she was more holy then zelie
Explanation:
Answer:
Because some idiots panicked and bought all the toilet paper
Explanation:
