Tick bites（蜱虫叮咬）are reported _______ in 12 provinces and claimed 31 lives since 2007
A.to break outB.to have broken outC.to be broken outD.to have been broken out在线课程B
解析：
考查非谓语动词。break out爆发，不及物，故不用被动。根据语境事情已经发生，故用完成时，选B。