Answer:
I was given the book by him.
Mary had hugged John.
The company is repairing the road.
The boys were given a new book.
The headmaster will send back those who come late
Answer: Genetic Engineering
Explanation:
No improvement to this sentence is necessary. It makes perfect sense on its own and sounds right. "Either" always takes an "or" else the word wouldn't make sense, as it's meant to contrast binary options.
eg.
I'm either going to eat food or drink water.
Answer:
you didn't even show the title
Explanation:
how we supposed to tell u