Error in grammar quiz

[NamelessKing]

I was taking some grammar quizzes and came across this sentence. The "of" should be deleted.

[emsr2d2]

Thanks NamelessKing. I'm sure one of the editors will fix that when they see this message.

[Tdol]

I can't see the image. Can you tell me which quiz?

[NamelessKing]

https://www.usingenglish.com/quizzes/301.html

Q19

[Tarheel]

I'd like to know what #4 means. And #15 is ungrammatical.

[jutfrank]

I'd like to know what #4 means.

Yes, it's slightly confusing because the subject of the sentence Timothy refers to the name, not to a person by that name. The name Tim is a short form of Timothy.

And #15 is ungrammatical.

Yes.

Also, I don't think #16 is very well written. I'd replace the semicolon with a full stop and add a comma after way.

[Tarheel]

OK. Timothy is called "Tim" for short.

[Tdol]

Thanks for letting us know.

[Tdol]

BTW, in the title of this thread you have written quizz- it has one-z in the singular. Thanks again for your help.

[probus]

BTW, in the title of this thread you have written quizz- it has one-z in the singular. Thanks again for your help.

Thread title fixed.