_______wishes to become a opera singer.

1. Kate Tomas
2. Kate Tomas'
3. Kate Tomas's

answer:3

The ___ cheers could be heard for blocks.

1. crowds
2. crowd's
3. crowd

answer: 3

5 answers

I don't interpret the first one as a possessive noun. I believe it is the subject of the verb, "wishes." However, 3 is right if it is a possessive.

I disagree with your second answer.
answer: crowds
No. The cheers belong to the crowd. Crowd's cheers
I think both your answers are wrong here. Cheers could be heard? Whose cheers? And someone wishes, so she is the subject of the sentence, not a possessive.
1.Kate Tomas