Please check my answers, they have a (*) next to the ones I chose. Thanks!

1. I ran into a door [see the bump on my head]?

Correct
*Incorrect

2. Several children (that is, five) came down with chicken pox.

Correct
*Incorrect

3. Several students—twenty in all—auditioned for the lead.

*Correct
Incorrect

I agree.

all the answers are correct

Thanks for the help :)

You're welcome.

9 years later!!

6 YEARS LATER LMFAOO

To check your answers:

1. "I ran into a door [see the bump on my head]?" - You selected "Correct," but the correct answer is "Incorrect." The sentence is missing the punctuation mark at the end. It should end with a question mark, not a period.

2. "Several children (that is, five) came down with chicken pox." - You selected "Incorrect," but the correct answer is "Correct." The parenthetical phrase "that is, five" explains or adds extra information about the number of children with chicken pox.

3. "Several students—twenty in all—auditioned for the lead." - You selected "Incorrect," but the correct answer is "Correct." The em dashes used in the sentence correctly set off the additional information, emphasizing the number of students who auditioned for the lead.