Answer:
Vacuum
Explanation:
The other two options are plural, there is no way that can go in the blanks.
Alliteration
alliteration means repetition of same sounds
This years flu season is going to be worse than usual.
Answer:
thats a compound sentence
Explanation:
It looks really good but I think you should put a comma before ( like ) and I suggest to take the ( grave or ) part because it will sound a lot more better
