1. Biking is good exercise
a. Subject
b. Direct of a Preposition
b. Subjective Complement
d. Appositive
2. Myra keeps herself in good shape by
dancing
a. Appositive
b. Subject
c. Object of a Preposition
d. Direct Object
3. My only exercise, walking, is not taxing.
a. Direct Object
b. Object of a Preposition
C. Appositive
d. Subject
4. Manny does boxing in the gym twice a
week
a. Subject
b. Appositive
c. Direct Object
d. Object of the Preposition​