There are few sentences in each question. Each sentence has pairs of words/phrases that are italicized/highlighted. From the italicized/highlighted word(s)/phrase(s), select the most appropriate word(s)/phrase(s) to form correct sentences. Then choose the best option.
i. Several pages of the book have come loose [A]/lose [B].
ii. I am totally uninterested [A]/disinterested [B] in grammar.