Question

My mother is not in very good shape, and has ____ tennis to get fit.

A．filled up

B．built up

C．taken up

D．set up

Answer 1

C

考查短语辨析。filled up 填满，built up 加强，taken up 从事，set up 建立，句意：我的母亲身材不是很好，从事网球运动来保持健康。所以选C。