Which one of the following sentences is punctuated correctly?
a. della arrived on time, it was just two o'clock.
b. she kept my surprise a secret, but she had a hard time doing it.
c. darleen chose tara, holly, and, marlene as her lab partners.
d. i found a large, smooth, rock on the beach yesterday

Choose one of the topics below and use all five sentence patterns in a composition of at least 100 words. return to the lessons "patterns: inverted, compound parts, s/v/do" and "patterns: s/lv/pn, s/lv/pa, s/v/io/do" if you need to review the sentence patterns. you will be graded based on whether all five sentence patterns are present in your work. suggestions for topics: a. what if the sun exploded? b. what if every family owned a helicopter? c. what if each year were six months long instead of twelve? d. what if you were the president of the united states?