单选题
There are many disadvantages in grouping pupils just according to their intellectual ability. In fact, bright children are rarely_____by mixed ability teaching.
【正确答案】
B
【答案解析】hold back意思是prevent the development of“妨碍……的发展”；hold out“伸出；拿出；提出”；hold up 在意思上相当于delay“耽搁；停止”；hold in“克制，抑制(感情)”。句意为：“仅仅按照学生的智力将他们分开教学有许多不利之处。事实上，将智力水平不同的学生混在一起教学，不会妨碍聪明学牛的发展。”