— When you _____ these two things,you can know more about them.
— That's true. First,let me find their differences.
三个选项的含义分别是：include 包括；compare 比较；complete 完成。根据本题语境可知，当你“比较”这两个东西的时候，你就能更了解它们。故答案为选项B。
Remember to take your swimwear _____ you might want to go swimming.
本题考査连词的用法。
句意：记得带上你的游泳衣，因为你可能想去游泳。表示“因为”要用 because，故答案为选项B。