第29题: [单项选择]Sometimes the student may be asked to write about his ______ to a certain book or article that has some bearing on the subject being studied. A. comment B. reaction C. impression D. comprehension 参考答案:B 答案解析:[解析] reaction to意为“对……反应”,B项符合题意。comment需用介词on;impression需用介词of;comprehension意为“理解”。