I always get better grades than he does.
句中的does能否去掉，即句子变为：I always get better grades than he.
I always get better grades than he does.
句中的does能否去掉，即句子变为：I always get better grades than he.
【答】可以。比如：She sings better than I . 她歌唱得比我好。（摘自《英汉多功能词典》新编升级版）
