How do you use, "a penny is a lot of money if you haven't got a penny" in a sentence?

Asap! can someone give the answers ?

2. which of the following topics would be too broad for a speech lasting 5 to 10 minutes?

Which of the following sentences uses dashes correctly? a. i looked under the bed - get this - and there it was! b. i need - a lot of - colors for this painting. c. i can't believe my own - brother! - is now a mayor. d. tom and i - are planning - a wedding in june.