497.Mary kept weighing herself to see how much _____ she was getting.

A.heavier

B.heavy

C.the heavier

D.the heaviest

498.I think whoever makes _____ contributions to the company than the others should get _____ income.

A.greater;a highest

B.more greater;a higher

C.greater;the highest

D.more greater;the higher

497.答案是A；

考查比较级。称体重目的是看比以前重多少。

498.答案是C;

由than得知第一空用比较级。再由than the others看出第二空应用最高级，且前面要用定冠词the。