31 Choose the right variant of plural noun: leafO A. leafvesO B. LeavesO C. LeafsO D. LeavvesO E. LeafesMy sister's husband is my.O A. stepbrotherO B. brother-in-lawO C. father-in-lawO D. son-in-lawOE. relativesThis is my pen, and that isO A. heO B. myO C. yoursOD. youO E. ourChoose necessary possessive pronoun: Where is ... book?O A. theirsO B. yoursO C. oursO D. mineO E. my​