The weight-loss pills really and she is becoming slimmer and slimmer.A. worksB. workC. is

问题补充：

The weight-loss pills really and she is becoming slimmer and slimmer.

A. works

B. work

C. is working

D. has worked

答案：

A. works

(答案→)B. work

C. is working

D. has worked

解析：考查动词。work用作系动词,作“起作用”之意，故选B。句意：减肥药真的很起作用，她变得越来越苗条了。