Well, with this you have to read and see what makes sense in the sentence.
1. Makes (make would make it sound like Mumps is a person)
2.is (are just wont work)
3.seems (seem doesn’t work)
4.kills (it matches the plural)
5.has (have agreed doesn’t work)
6.is (it’s one persons term)
7.studies (it’s what economics does)
8.summarizes (again what the news does)
9.is (are is weird)
10.is(are doesn’t work)
11.is(again won’t work)
12.is(not are)
13.charge (charges won’t work & fits weird)
