ランダムに小テストを生成するプログラム。1000問ぐらい問題をプールしておいて，50題ずつランダムに小テストを生成するような使い方を想定しています。サンプルの問題を入れておいたので，動かしてみてください。

data1.txt

What is JavaFX?
Can I use JavaFX without Java?
Why should I upgrade to the latest Java version?
For what platforms is JavaFX available?
Is JavaFX free to download?
What will I get when I download JavaFX?
Can I download JavaFX and copy it to another computer?
I am an administrator. Can I install JavaFX on all the computers at my company?
Can I put JavaFX on an intranet for others to download?
Do I need to purchase a license if I need the JavaFX Runtime for multiple users in my company?

data2.txt

JavaFX is a software technology which, combined with (               ), enables the creation and deployment of modern-looking applications with rich content, audio and video.
No, you must have both JRE and (               ) (               ) installed on your PC in order to run JavaFX applications.
The latest (               ) version contains important enhancements to improve performance, stability and security of the (               ) applications that run on your machine.
(               ) is available on Windows, Mac OS X, and (               ).
Yes, (               ) is free to download.
The (               ) (               ) is what you get when you download JavaFX.
Yes, you can download the (               ) (               ) on one system and copy it to another computer, provided you own both computers.
Yes, you may make unlimited copies for internal use for the purpose of running applications on (               )-enabled general purpose desktop computers and servers.
Yes, you can provide the (               ) (               ) on an Intranet for internal users to download.
No, you may make unlimited copies for internal use for the purpose of running applications on (               )-enabled general purpose desktop computers and servers.

data3.txt

JavaFX is a software technology which, combined with Java, enables the creation and deployment of modern-looking applications with rich content, audio and video.
No, you must have both JRE and JavaFX Runtime installed on your PC in order to run JavaFX applications.
The latest JavaFX version contains important enhancements to improve performance, stability and security of the JavaFX applications that run on your machine.
JavaFX is available on Windows, Mac OS X, and Linux.
Yes, JavaFX is free to download.
The JavaFX Runtime is what you get when you download JavaFX.
Yes, you can download the JavaFX Runtime on one system and copy it to another computer, provided you own both computers.
Yes, you may make unlimited copies for internal use for the purpose of running applications on Java-enabled general purpose desktop computers and servers.
Yes, you can provide the JavaFX Runtime on an Intranet for internal users to download.
No, you may make unlimited copies for internal use for the purpose of running applications on Java-enabled general purpose desktop computers and servers.

QuizMaker.rb

# ゲームモード: trueのときは小テストは生成しない
GAME = false

#小テストを生成する場合の設定
	# 小テストの問題数
	NUM = 50
	# 生成する小テストの個数
	N = 10
	# 設問番号をナンバリングするか
	NUMBERING = true

DATA1 = "data1.txt" #問題文ファイル
DATA2 = "data2.txt" #穴埋め解答ファイル
DATA3 = "data3.txt" #模範解答ファイル

class QuizMaker

	def initialize(num)
		@num = num
		@data1 = align(DATA1)
		@data2 = align(DATA2)
		@data3 = align(DATA3)
		@length = @data1.length
	end

	def align(file)
		open(file, "r:utf-8").readlines.map(&:to_s).map(&:strip)
	end

	def generate
		bank = (0..@length-1).to_a.sample(@num)
		[ bank.map.with_index {|b,i| question(b,i+1)},
		  bank.map.with_index {|b,i| answer(b,i+1)} ]
	end

	def ask(n)
		puts
		puts "#"*30
		puts @data1[n]
		ans = (@data3[n].split(/[ ,.]/) - @data2[n].split(/[ ,.]/))
		sent = @data3[n] + ""
		ans.each {|word| sent.gsub!(word, "(" + " "*(word.length-2) + ")")}
		puts sent
		print ">> "
		resp = gets.chomp
		puts "*****" + (resp == ans.join(" ") ?  "CORRECT" : "WRONG") + "!!*****"
		puts @data3[n]
		resp == ans.join(" ")
	end

	def question(n, i)
		(NUMBERING ? i.to_s+"." : "  ") + "  #{@data1[n]}\n    #{@data2[n]}\n"
	end

	def answer(n, i)
		(NUMBERING ? i.to_s+"." : "  ") + "  #{@data1[n]}\n    #{@data3[n]}\n"
	end

end

qm = QuizMaker.new(NUM)

if !GAME
	N.times do |i|
		data = qm.generate

		puts "#{"#"*30}\n### Q.#{i+1} is below ###\n#{"#"*30}\n\n"
		puts data[0]
		puts
		puts "#{"#"*30}\n### A.#{i+1} is below ###\n#{"#"*30}\n\n"
		puts data[1]
		puts
	end
else
	loop do
		print "start: "; a = gets.chomp.to_i
		print "end: "  ; b = gets.chomp.to_i
		break if a<1 || b<1
		asks = (a..b).to_a
		until asks == []
			wrongs = []
			asks.each do |n|
				wrongs.push(n) until qm.ask(n)
			end
			puts
			puts "#"*30
			puts "Your wrongs were #{wrongs}."
			asks = wrongs
		end
		puts "Great!!"
	end
end