—Did you walk to school this morning?-No,we went to school by bus instead of on foot.

问题描述:

—Did you walk to school this morning?-No,we went to school by bus instead of on foot.
为什么这里不是instead?

instead是副词,一般置于句末.
instead of是个介词短语,在句中,后面可接名词,动名词等