问题
选择题
He spends as much time as he can _______ English every day. [ ]
A. to practice speaking
B. to practice to speak
C. practice to speak
D. practicing speaking
答案
答案：D
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He spends as much time as he can _______ English every day. [ ]
A. to practice speaking
B. to practice to speak
C. practice to speak
D. practicing speaking
答案：D