Every minute he could spare was made use spoken English.A. of practisingB. of to practise

问题补充：

Every minute he could spare was made use spoken English.

A. of practising

B. of to practise

C. to practise

D. to practicing

答案：

A. of practising

(答案→)B. of to practise

C. to practise

D. to practicing

解析：本题考查非谓语动词。句中短语make use of为“利用”之意，其后不定式表示目的性。句意：他所抽出的每一分钟都用来练习英语口语。