You should use a correlative conjunction here.
Both . . . and
Either . . . or
Neither . . . nor
Not only . . . but also
answer: the first one
Explanation:
they were fighting because of the war that just happend
<span>Park naturalists are able to predict the eruptions of only five of the major geysers, including Old Faithful,
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I think it is b because you cant really put pics in billboards u can only put pics on billboards.