What’s missing?

{"params":{"media":{"disableImageZooming":false},"text":"<p>Complete each of these sentences with two words from the list below. Be sure to capitalize where necessary.<\/p>\n\n<p><strong>cares <\/strong>|<strong> crucially <\/strong>|<strong> importance <\/strong>|<strong> important <\/strong>|<strong> matter <\/strong>|<strong> no <\/strong>|<strong> vital <\/strong>|<strong> who<\/strong><\/p>\n","overallFeedback":[{"from":0,"to":100}],"showSolutions":"L\u00f6sung anzeigen","tryAgain":"Wiederholen","checkAnswer":"\u00dcberpr\u00fcfen","notFilledOut":"Bitte f\u00fclle alle L\u00fccken aus, um die L\u00f6sung ansehen zu k\u00f6nnen","answerIsCorrect":"&#039;:ans&#039; ist korrekt","answerIsWrong":"&#039;:ans&#039; ist falsch","answeredCorrectly":"Korrekt beantwortet","answeredIncorrectly":"Falsch beantwortet","solutionLabel":"Korrekte Antwort:","inputLabel":"L\u00fccke @num von @total","inputHasTipLabel":"Tipp verf\u00fcgbar","tipLabel":"Tipp","behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"autoCheck":false,"caseSensitive":false,"showSolutionsRequiresInput":false,"separateLines":false,"confirmCheckDialog":false,"confirmRetryDialog":false,"acceptSpellingErrors":false},"scoreBarLabel":"Du hast :num von :total Punkten erreicht.","confirmCheck":{"header":"Beenden?","body":"Ganz sicher beenden?","cancelLabel":"Abbrechen","confirmLabel":"Beenden"},"confirmRetry":{"header":"Wiederholen?","body":"Ganz sicher wiederholen?","cancelLabel":"Abbrechen","confirmLabel":"Best\u00e4tigen"},"questions":["<p>A. It\u2019s *crucially important* to cancel the subscription now, otherwise you\u2019ll have to pay for another year.<br>\nB. *No matter* how hard I try, I can\u2019t get her to see a doctor.<br>\nC. The exam isn\u2019t of *vital importance* to his career, but I hope he passes it anyway.<br>\nD. *Who cares* what others think? If you want a tattoo, get one!<\/p>\n"],"submitAnswer":"Submit","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","a11yCheckingModeHeader":"Checking mode"},"metadata":{"title":"What\u2019s missing?","license":"U"}},