Choose the underlined part that needs correcting in each sentence below

Choose the underlined part that needs correcting in each sentence below.
31. If they have time in the weekend, they will come to see us.
                        A        B                                       C         D
32. It take me ten minutes to go from my house to school.
      A  B      C                                                D
33. Many people think that students have a easy life.
                A            B                C                     D
34. I think we have few vacations than American students.
          A                     B         C                           D
35. We work very hardly but we have fun working together.
                A               B                      C            D