Answer:
3. <u>E</u><u>i</u><u>t</u><u>h</u><u>e</u><u>r</u><u> </u>my brother and I play football, <u>but</u><u> </u><u>both</u> of us play very well."
<u>either/both</u>
4. She likes football, I <u>Although</u><u> </u>prefer tennis.
<u>Although</u>
A white elephant symbolizes something no one wants
The conclusion must restate the thesis -- which was stated in the introductory paragraph. Think of the introduction and the conclusion as the two slices of bread of a sandwich.