the main idea of the text and you will be able to answer the question.A. GraspB. To gras

问题补充：

the main idea of the text, and you will be able to answer the question.

A. Grasp

B. To grasp

C. Grasping

D. Grasped

答案：

(答案→)A. Grasp

B. To grasp

C. Grasping

D. Grasped

解析：考查动词。本题考查祈使句 + and + 陈述句，故用动词原形，句意：抓住文章大意，你就能够回答问题。选A。