On November 19, 1863, Abraham Lincoln went to Gettysburg to speak at the National Soldiers Cemetery（公墓）. The Civil War was still going on. There was much criticism (批评) of President Lincoln at the time. He had been invited to speak at Gettysburg only out of politeness. The other speaker was to be Edward Everett, a famous statesman (政治家) and speaker of the day. Everett was a handsome man and very popular everywhere.

It is said that Lincoln prepared his speech on the train while going to Gettysburg. Later that night, alone in his hotel room and tired out, he again worked briefly on the speech. The next day Everett spoke first. His speech lasted an hour and 57 minutes and it was a perfect example of the day. Then Lincoln rose. The crowd of 15,000 people at first paid little attention to him. He spoke for only nine minutes. At the end there was little applause（掌声）. Lincoln turned to a friend and said, “I have failed again.”

Some newspapers at first criticized (批评) the speech. But little by little, as people read the speech, they began to like its simplicity（简洁）and its deep meaning. It was a speech which only Abraham Lincoln could have made.

Now everyone thinks of it as one of the greatest speeches ever given in American history.

小题1: In 1863, Abraham Lincoln was __________________ in Gettysburg.

A．warmly welcomed

B．unpopular

C．greatly praised

D．very polite小题2:Lincoln was invited to speak at the National Soldiers Cemetery because he was __________.

A．a famous speaker of the day

B．very handsome and polite

C．President of the United States at the time

D．a popular statesman小题3: It can be inferred from the text that __________________________________.

A．Lincoln had prepared his speech very carefully before he went to Gettysburg

B．Lincoln was very busy at the time and didn’t have much time to prepare his speech

C．Lincoln’s speech seemed to be a failure for the first time

D．Lincoln’s speech was a little shorter than Everett’s one小题4:Lincoln’s speech was __________________.

A．an immediate success

B．not accepted at all

C．a total failure

D．not well-received at first小题5:Which of the following statements is NOT TRUE?

A．Lincoln’s speech has deep meaning though it is simple in style.

B．Neither Lincoln’s speech nor Everett’s was popular then.

C．Lincoln’s speech proved to be a great success later.

D．Everett’s speech was thought to be perfect at that time.

甲公司为房地产开发公司，自2011年3月开始销售其开发的住宅小区，并在媒体上发布销售广告。其广告内容大致如下：本公司开发建设的小区环境优美，绿化率为60%，设施齐全，并且设有托儿所”。由于绿化率和入学的便利条件，该小区房价虽然比一般楼盘高，但仍被抢购一空。2011年6月15日，该小区交付业主使用，业主们入住后发生了下列事件：
(1)乙的儿子刚刚3岁，夫妻两人要工作，孩子很需要人照顾。当初正是看中广告所称的托儿所，才买下该小区的房子，但是入住后，始终未找到该托儿所。乙多次催问无果后，终将儿子送入较远的托儿所，为此乙要求甲公司承担违约责任，甲公司以“设有托儿所”一事并未纳入购房合同，不具有约束力为由拒绝承担责任。
(2)丙将其所购房屋出租给丁使用，并签订了租赁合同，其合同中约定：房屋租金为3500元/月，按季预付，物业费由丁缴纳。丁租下该房屋后，由于对物业公司的服务不满，一直拒绝缴纳物业费。2011年9月，丁未经丙同意将该房屋转租给戊，丙得知后强烈反对，并主张解除与丁的租赁合同，要求戊腾退房屋。
(3)因甲公司原因，庚购下房屋后一直未能取得房屋产权证，经查，庚与甲公司购房合同总价款为180万元，双方约定甲公司应当自该小区交付使用之日起3个月内为庚办理房屋产权证，否则应当承担合同总价款20%的违约金。庚就该事项诉至人民法院，要求甲公司及时办理房屋产权证，并支付36万元的违约金。庚起诉后，甲公司于2011年10月5为其办妥房屋产权证，经查，由于迟延办理房屋产权证给庚造成的实际损失为10万元，甲公司向人民法院请求降低违约金。
(4)辛住后发现，所购房屋套内建筑面积比合同约定的套内建筑面积缩水5%，要求与甲公司解除商品房买卖合同。
根据上述内容，分别回答下列问题：

甲公司是否应当向乙承担违约责任说明理由。