问题补充:
单选题Afterthesummervacation,theprofessor,togetherwithhisfellowteachers,______thescientificexperimentA.goes downB.go downC.gets down toD.get down to
答案:
C解析考查主谓一致。together with连接两个主语时,谓语动词取决于前者,get down to 开始认真做某事。句意:暑假之后,这位教授和他的同伴老师们开始专心于科学实验。故选C。