Which words in the sentence are the infinitive?
when jeremy packed for camp, he was unsure how much clothing he needed to bring.
a.
he was unsure
b.
he needed
c.
to bring
d.
for camp

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

um, what am i suppose to answer here? it just said that he will studied hared because of a grade in spanish.