Part II. Each of the following sentences has one mistake. Identify the mistake  and  correct  them by writing on the answer sheet

1. What will you do, if you saw a ghost?

                A          B              C       D

2. If I were you, I didn’t buy that expensive car.

    A             B        C                         D

3. If we planted  more trees along the streets, we will  have more fresh air.

                   A                            B                                  C                D

4. If we are free this afternoon, we would visit the Statue of Liberty.

    A                            B                     C                      D