问题补充：
He spends as much time as he can English every day.
A. practising speaking
B. practise to speak
C. practise speaking
D. to practise to speak
答案：
(答案→)A. practising speaking
B. practise to speak
C. practise speaking
D. to practise to speak
解析：此题考查句型结构sb spend some time ﹙in﹚doing sth 某人花费时间做某事。
