請問三題克漏字問題，小白不要亂

Question

Two thirds cannot correctly __10__ the Civil War between 1850 and 1900.
10. A) place B) judge C) get D) lock

The good news is that there is growing agreement on what is wrong with
the teaching of history and what needs to be __19__ to fix it.
19. A) done B) dealt C) met D) reached

The steps are tentative __20__ yet to be felt in most classrooms.
20. A) therefore B) or C) and D) as

請問這三題正確答案該是什麼呢？又為什麼？
我這邊有正確答案，但我無法理解為什麼是這些答案..
希望高手替我解答

nobody's willing to help?

the answers are B, C, A

Answer 1

I'll give it a shot.

1. The answer is "judge" because it can't be any other word.  If you use "place", then it becomes a fragment.  The sentence won't make any sense if you use either "get" or "lock".  I can't figure out the exact meaning because I don't know very much about about the Civil War and I can't tell what "Two thirds" is supposed to mean.2. At first, I thought the answer was "done".  (This was before I saw the answer)  Then I looked up the word "met" to understand why it is so.  The key word is "need".  You "do" something.  You "reach" a goal. And you "meet" a need.3. The answer is "therefore" because it is the only word that means "because". The steps can't be felt in most classrooms yet BECAUSE they are tentative.  I don't know if this is clear enough, but I've tried.

2005-12-15 12:58:44 補充：
Sorry it wasn't any help.

Answer 2

About the first one, *two-thrids* stands for Americans, but it doesn't matter anyway since 1850-1900 is the period when Civil War took place. However I still don't understand why *place* makes the sentence fragment.

2005-12-15 12:26:05 補充：
And the second one I would apologize. I send a message to the one who provides the answer and it turns out answer A is also correct. I do understand what you said about *meet* and *need* though.

2005-12-15 12:26:24 補充：
And the last one is the most confusing one. I think *therefore* is not equal to *because,* is it?

Answer 3

有點...不懂..不知道解答是哪一個說..

Answer 4

too diffucult for me,sorry