How much time do you often spend English every day?
A. to practice speaking
B. practicing to speak
C. on practicing to speak
D. practicing speaking
网友回答
A. to practice speaking
B. practicing to speak
C. on practicing to speak
(答案→)D. practicing speaking
解析：句意，你通常每天花费多长时间来练习说英语。Spend (in) doing sth.花费（时间）干某事，spend on sth. 在某事上花（金钱或时间等），practice 后接动名词，不接不定式，故选D。