I have to my diet rather than eat the same all the time. so that I can keep fit.A. differB

问题补充：

I have to my diet rather than eat the same all the time.，so that I can keep fit.

A. differ

B. vary

C. contiune

D. range

答案：

A. differ

(答案→)B. vary

C. contiune

D. range

解析：考查动词词义辨析。Differ与----不同是不及物动词；vary 使改变符合句意。Range使排列。