SAT grammar questions!help pls!

题目

SAT grammar questions!help pls!
1) our team has worked for several "months on a robot for the science fair that we plan on entering in the robotics division"
a) months on a robot for the science fair that we plan on entering in the robotics division
b)months on a robot that we plan to enter in the robotics division of the science fair
为甚麼不是A?
2)Gothic architecture is a style of "architecture,associated particularly" with cathedrals and other churches,that flourished in Europe during the Middle Ages.
a) architecture,associated particularly
c) architecture,in particular associating
the answer is A,why not
3) Tell me where you have been and "an account of" your activities there
b)your accounting of
c)what you account of
e) give me an account of
the answer is E,why?
4)Because of pleading in vain for improved maintenance services,the tenants refused to pay rent until the landlord agreed to make the much-needed repairs.
a)Because o

答案

The 3rd question is the easiest to answer:
Tell me and "give me" makes a parallel structure.
where and "what" could be the right answer too,but "what you account of" does not make sense."Account" as a verb works with "for" and "as".
The 4th question actually points out a typical grammar point in SAT.The order of two actions "plead and agree" could be shown by using "have done and did" structure.Make your life easier and just remember this structure.
For the 1st one,the answer is mainly determined by the meaning of the sentence.Make sure you understand the meaning of all nouns in the sentence and also clarify the relation bwn them.
The 2nd question shortens the sentence by deleting "which is" after "archi",so just add "which is" and see the answer~