请根据括号中的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。

小题1:Everyone came to the meeting late for        (different) reasons.

小题2:What a great        (建议) the teacher gave me. It is always good for my study.

小题3:Now the student has begun to        (get to know and understand ) that he was wrong.

小题4:My teachers often        ( 鼓励 ) me not to give up when I face difficulty.

小题5:Bill Gates’ achievements go       setting up Microsoft Corporation. He has also donated lots of money to charity.

党的十八大报告提出，公平正义是中国特色社会主义的内在要求，要在全体人民共同奋斗、经济社会发展的基础上，“加紧建设对保障社会公平正义具有重大作用的制度，逐步建立以权利公平、机会公平、规则公平为主要内容的社会公平保障体系，努力营造公平的社会环境，保证人民平等参与、平等发展权利”。下图中能够有效解决公平问题的措施是（ ）

A．②④

B．①②

C．③④

D．①③