Because the gravity of the sun keeps all planets in their orbits :3 hope I helped
Answer:
Reactants= Products
Explanation:
Reactants are what are required to start the reaction. Products are the ending result.
If the underlined verb is <em>will have been talking, </em>in the sentence Lillian will have been talking for two hours by the time she finishes her classical music lecture, then the correct answer is D. future perfect progressive.
A would be - will talk.
B would be - will have talked.
C would be - will be talking.
