Our teacher suggests English every day to improve our spoken English.A. practising to spe

问题补充：

Our teacher suggests English every day to improve our spoken English.

A. practising to speak

B. to practise to speak

C. to practise speaking

D. practising speaking

答案：

A. practising to speak

B. to practise to speak

C. to practise speaking

(答案→)D. practising speaking

解析：此处suggest后接动名词作宾语，practise后接动名词作宾语，所以用practising speaking是形式，选D。句意：我们的英语老师建议我们每天练习讲英语以提高我们的英语口语水平。