They can practice speaking English every day to improne their English (对划线部分提问)划线部分:practice speaking English every day___ ___ they ___ to improve their English?

问题描述:

They can practice speaking English every day to improne their English (对划线部分提问)划线部分:practice speaking English every day
___ ___ they ___ to improve their English?

(What) (can) they (do) to improve their English?