Question

【题目】Cells are important because they are organized structures that help living thing the activities of life.

A. carry on B. expand on

C. put on D. hang on

Answer 1

【答案】A

【解析】A考查动词短语。句意：细胞是重要的，因为它们是有组织的结构，帮助生物进行生命的活动。A. carry on继续，参与；B. expand on详述；C. put on穿上，上演；D. hang on坚持下去。故选A。