First of all everyone should know this answer. But in case you don't know sometimes someone as in your classmate can be allergic to any sort of animal. Sometime it just depends on the kind of pet. If it was to be a dog then there are quite a few reasons. This question is fairly easy to answer.
A.
Complex sentences have a lot of words and go into further detail than a basic sentence.
Gehrig<span> was known as the </span>Iron Horse<span> because he established a record for the number of consecutive games played by a professional baseball player, appearing in 2130 consecutive games from 1925 to 1939. His record was broken in 1995 by Cal Ripkin, Jr., of the Baltimore Orioles.</span>
After “because,” you always want to put an explanation.
Freddie tried to stop the kitten that was scrambling wildly up the drapes
