C. The setting and characters are presented in unusual ways.
Answer: By the time they came, we had finished our dinner.
Came is past tense, so I would assume it would be had finished
You could use transition words like finally or in conclusion
Answer:
B
Explanation:
By showing how changes in DNA can help weeds as well as crops
Hope this helped :)
Fancy joining us ?
I think it will be like that