English is very difficult .We need to work( ) at it every day.

问题描述:

English is very difficult .We need to work( ) at it every day.
English is very difficult .We need to work( ) at it every day.
对于你们只不过是举手之劳而已,但是我需要精确的答案!

hard,努力地……,副词作状语,修饰动词work.
句意:(学好)英语非常难,(因此)我们每天都需要努力(地)学习它.