Find ONE mistake in each of the following sentences and correct it

Find ONE mistake in each of the following sentences and correct it.
11. If I was an astronaut, I would be really famous in my country.
               A                        B            C                D
12. Please don’t drink this water because it is contaminate.
          A                  B                             C                       D
13. She would like to know how pronounce these Spanish words.
                   A                  B                  C                                  D
14. Jack has never be there before, so he is so excited.
                 A             B                     C                           D     
15. Mr. Smith went to the church to feel relaxed every day.
                A.        B                        C                    D
16. The sea will rise level if the ice melted.
          A                 B          C               D
17.     The water is contaminated as a result in pouring lots of chemicals into the river.
                                      A                           B                     C                  D
18      Why has John been ability to learn a lot of languages?
             A                              B                   C           D
19.     Hundreds of houses was destroyed after the earthquake.
                  A      B               C                   D
20.     Typhoons are happened in her hometown once a year.
                      A             B                C            D