问题
选择题
_____ your attention focused on practicing, and you can reach your goal of becoming an excellent pianist.
A．Keep
B．Keeping
C．To keep
D．If you keep
答案
答案：A
题目分析：祈使句用动词原形，故选A。
点评：祈使句的口诀，祈使句无主语, 主语you常省去; 动词原形谓语当, 句首加don't否定变; 朗读应当用降调, 句末常标感叹号。