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I want to create a Cloze test in Mathematica.

I want to have text in a text cell and leave some words blank (to be filled in by students).

With a button I want be able to switch between styles for those words (visible red or invisible and replaced by dots for example). How could this be done?

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    $\begingroup$ Should those blanks be editable? $\endgroup$ – Kuba♦ May 2 '17 at 6:45
  • $\begingroup$ Not necessarily. Originally I was looking for some global setting like in TeX which I could change. $\endgroup$ – Darwin1871 May 2 '17 at 18:25
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One out of many possible ways:

hideF = Row[List @@ StringReplace[#,  w: Alternatives @@ #2 :> Style["...", Blue]]] &;
highlightF = Row[List @@ StringReplace[#, w: Alternatives @@ #2 :> Style[w, Red, Bold]]] &;

text = StringTake[ExampleData[{"Text", "LoremIpsum"}], 200];
words = {"amet", "rutrum", "feugiat"};

FlipView[{hideF[text, words], highlightF[text, words]}]

enter image description here

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  • $\begingroup$ Thank you very much for all the possibilities. Originally I was looking for a global setting changing some "marked" words in text cells. But the answer from kglr might work well. $\endgroup$ – Darwin1871 May 2 '17 at 18:28
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Just as a start:

f = DynamicModule[{col = White}, 
    DynamicWrapper[Dynamic[Style[#, col]], 
     If[CurrentValue["MouseOver"], col = Red, col = White]]] &;
DynamicModule[{dat = (f /@ {"pig", "dog"})}, 
 Dynamic[Grid[MapThread[{#1, #2} &, {{
      "Pork comes from a ", "An animal that barks is a"}, 
     UnderBar /@ dat
     }], Alignment -> Left]]]

enter image description here

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{Button["White highlight", FrontEndTokenExecute["FontColor", White]],
 Button["Red highlight", FrontEndTokenExecute["FontColor", Red]]}

then type: "Here is some random text"

Double click on a word then click on a color highlight button.

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