改写句子,使句意不变例:Always do your homework before you get too tired.改:( ) you get too tired,you should ( )doing your homework.注:一空一词.

问题描述:

改写句子,使句意不变
例:Always do your homework before you get too tired.
改:( ) you get too tired,you should ( )doing your homework.
注:一空一词.

Until;keep

before always

until keep