Find the underlined part that needs correction in each of the following

Find the underlined part that needs correction in each of the following questions.

13.My sister has much books than me. She loves collecting novels.

                      A    B                   C                                 D

14.Coal plants use more 40% electricity than hydropower plants.

                          A            B           C          D

15.My father bought an electric car last week but it’s really fast.

                         A       B                      C             D

16.Wind power is cheap to run, but it's difficult to finding the windy location.

                          A                 B     C                             D