I think it is A but not 100% sure. Think of an enzyme like a key unlock the lock is the protein. And to activate getting inside your car or house you have to fit the key into the lock.
It’s cranky and white shaped where it’s pretty shiny and crystals inside them where they spark off your eyes
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.
Similarly, our surroundings are our environment. The social and economic situation of a person is influenced by all environmental influences. It results in progress or positive change in the society and nation's social, economic, and cultural components. Peace and security are brought about by development.
