Studentsshould（）theirowninterestsaswellasdotheirschoolwork.
Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
FindingHarrietshouse______tobemoredifficultthanNickhadexpected.
坚持马克思主义的指导地位，是社会主义核心价值体系的灵魂
诚实守信，既是做人的准则，也是对从业者的道德要求
