It was the quality of life in the future I took this training course，not just to make more money.
A. to improve; that
B. improving; when
C. to improve; when
D. improving; that
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(答案→)A. to improve; that
B. improving; when
C. to improve; when
D. improving; that
解析：考察强调句。根据句子结构可知，该句为强调句，to improve作目的状语。强调句的特点是去掉it was .. that ..以后，句子完整，即I took this training course to improve the quality of life in the future, not just to make more money.
句意为，我参加这个培训课程是为了提高将来的生活质量，而不仅仅是为了赚更多的钱。