Question

You should always do eye ________. Don’t just sit at the desk busy doing ________.

A. exercise, exercises B. exercises, exercise

C. exercise, exercise D. exercises, exercises

 

Answer 1

D

【解析】

试题分析：你应该经常做眼保健操。不要坐在桌边忙着做练习。作早操,规定要加s 作眼操也要加s 如果它作类似于作业的那种"练习",也加s，故选D。

考点：考查动词短语。