The poem will have a beat to it. if the tone of it sounds like it matches your heart than the person was thinking about love.
Explanatio hey
Car manufacturers use radiation for which task?
2) The memory of the daffodils can bring him happiness.
Answer: get as high as you can
The answer is D.
"Keep", "factor", and "calculate" are all verbs in the list of things the new system allows teachers to do. The other sentences are inconsistent with their list of verbs/adjectives/nouns. Thus, option D is the only one that is grammatically correct.
I am not too good at explaining, so let me know if you are still confused.
Hope this helps! :)