Hey there!
The correct answer is A.) As a special treat, Lee invited friends to dinner and took them all out.
A doesn't seem akward, it seems perfectly fine
B is akward, because it states "and all of them were taken out", and it makes it sound different from the implied meaning.
C is akward, because it says "had taken", and in this type of sentence, the proper past tense form of "take" should be "took", not "taken".
Hope this helps! Good luck on your assignment!
Answer:
for the word research, just look up in the dictionary or on an electronic the definition of research.
then just draw a simple picture of research
then for an antonym, your putting the opposite of the word research, which might be in the dictionary
and finally for the synonym, do a word that also means research, once again might be in the dictionary
hope this helped!