1.      It's nice_______ you.

          a. to know                   b. know                     c. knowing                  d. to be knowing

2.      You have no right_______ my daughter.

          a. see                           b. to see                     c. seeing                      d. to have seen

3.      Please tell me what_______

          a. doing                       b. do                          c. to do                        d. to have done

4.      I forbid you _______ my letter.

          a. to read                     b. read                       c. to have read             d. reading

5.      We stopped_______ hello to her.

          a. say                           b. saying                    b. to have said             d. to say