If you _______ in behaving in this way you will bring yourself nothing but trouble.
B
continue一般不与in搭配，常见的是continuetodosth。decide也多与to搭配。另一方面，从词义来看，continue意思是“继续”，decide意思是“决定”，react意思是“反应，作出反应”，都与句意不相符。只有persist无论是从搭配还是从意思来看都是最佳答案。
Thechallengeisnotoneofexpansion._______,therapidgrowthinenrollmentoverthelast40yearshascometoanend.
Idon’tthinkthechargeforoverhaulingtheequipmentisexcessivein_______toitssize.
Inourculture,weareaccustomedtosophisticatedprescriptiondrugscontaininga_____ofchemicalingredients
Thetrafficwasheldupformorethanthirtyminutes,________causedmetoarrivelate.