第二节 翻译句子（五小题，每小题2分，满分10分）
根据汉语提示，完成下列句子，每空只填一词。
71. I am considering going back to college, but I haven’t _____ ______ ______ _____ （下定决心）.
72. Every minute should _______ ______ _______ _______ （充分利用）to build some houses before winter arrives.
73. At the meeting he _____ _____ _____ （提出）a brilliant idea that encouraged everyone.
