A: How nice to see you back, Li Lei!

B: Hi, Judy! I just came back yesterday.

A:____

B: Wonderful! I've been to many places of interest and I enjoyed myself in Disneyland.

A:____

B: Not really. Sometimes I got into trouble. They spoke too quickly and I couldn't have long conversations with the people there.____

A: Yes, I agree. I know English is very important, but I often feel sleepy in English classes.____

B: I'm afraid, too. And it's very difficult for me to remember new words.

A: Me, too. I don't know what to do____

B: Don't let these difficulties discourage(使气馁) you. Remember: where there is a will, there is a way.

A: Sure, I won't. I'll try my best.

B: So will I.

A. How was your trip?

B. At times I feel like giving up.

C. What did you buy in the USA?

D. I'm really afraid of the final exam.

E. I think I should work harder in English.

F. Could you make yourself understood in the USA?

阅读下文，回答相关问题

                                                                                                    改变一生的闪念
        那是一个老师告诉我的故事，至今仍珍藏在心里，让自己明白在人世间，其实不应该放过每一个能够帮助别人的机会。
        多年前的一天，这位老师正在家里睡午觉，突然，电话铃响了，她接过来一听，里面却传来一个陌生粗暴的声音：“你家的小孩偷书，现在被我们抓住了，你快来啊！”在话筒里传来一个小女孩的哭闹声和旁边人的呵斥声。她回头看着正在看电视的惟一的女儿，心中立即就明白过来是怎么回事了。
        她当然可以放下电话不理，甚至也可以斥责对方，因为这件事和她没任何关系。
        但自己是老师，说不定她就是自己的学生呢？通过电话，她隐约可以设想出，那个一念之差的小女孩，一定非常惊慌害怕，正面临着尴尬的境地。犹豫了片刻之后，她问清了书店的地址匆匆忙忙赶了过去。正如她预料的那样，在书店里站着一位满脸泪痕的小女孩，而旁边的大人们，正恶狠狠地大声斥责着。她一下子冲上去，将那个可怜的小女孩搂在怀里，转身对旁边的售货员说：“有什么事就跟我说吧，我是她妈妈，不要吓着孩子。”在售货员不情愿的嘀咕声中，她交清了28元的罚款，才领着这个小女孩走出了书店，并看清了那张被泪水和恐惧弄得一塌糊涂的脸。
        她笑了起来，将小女孩领到家中，好好清理了一下，什么都没有问，就让小女孩离开了，临走时，她还特意叮嘱道，如果你要看书，就到阿姨这里，阿姨有好多书呢。
        惊魂未定的小女孩，深深地看了她一眼，便飞一般地跑掉了，从此便再也没有出现。
        时间如流水匆匆而过，不知不觉间，多少年的光阴一晃而过，她早已忘了这件事，依旧住在这里，过着平稳安详的生活。
        有一天中午，门外响起了一阵敲门声。当她打开房门后，看到了一位年轻漂亮的陌生女孩，露着满脸的笑容，手里还拎着一大堆礼物。“你找谁？”她疑惑地问着，但女孩却激动地一句话也说不出来。好不容易，她才从那陌生的女孩的叙述中，恍然明白，原来她就是当年的那个偷书的小女孩，刚从某名牌大学毕业，已找了份令人羡慕的工作，现在特意来看望自己。女孩眼睛泛着泪光，轻声说道：“当年情急之下的那个电话，幸亏打到您的家里。虽然我至今都不明白，你为什么愿意充当我的妈妈，解脱了我，但这么多年来，我一直想了一桩心愿：喊您一声‘妈妈’。” 话音刚落，女孩已泪流满面。老师的眼睛也开始模糊起来，她有些好奇地问道：“如果我不帮你，会发生怎样的结果呢？”女孩的脸上立即变得忧郁起来，轻轻摇着头说：“我说不清楚，也许就会去做傻事，甚至去死。”
        老师的心猛地一颤。
        望着女孩脸上幸福的笑容，她也笑了。

一个圆柱的体积是314立方分米，它的底面面积是6.28平方分米，它的高是____分米。

根据短文理解，选择正确答案。

    Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict(有瘾的人),” he jokes. “I used to carry a fresh suit to work with me, so I could change if my clothes got wrinkled(有褶皱的).” Today David wears casual clothes (便装) to the office. He hardly ever wears a necktie. “I am working harder than ever.” David says, “and I need to feel comfortable.”

    More and more companies are allowing their office workers to wear casual clothes to work. In the United States, the change from formal to casual office wear has been gradual. In the early 1990s, many companies allowed their employees to wear casual clothes on Friday. This became known as “casual Friday”. “What started out as an extra one-day-a-week benefit for employees has really become an everyday thing.” said business consultant Maisly Jones.

    Why have so many companies started allowing their employees to wear casual clothes? “One reason is that it's easier for a company to attract new employees if it has a casual dress code.” “A lot of young people don't want to dress up for work,” says Owen Black, the owner of a software company, “so it's hard to hire people if you have a conservative (保守的) dress code.” Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study conducted by Levi Company, 85 percent of employers said that they believe that casual dress improves employee morale (心境, 士气). Only 4 percent of employers said that casual dress has a negative influence on productivity. Supporters of casual office wear also argue that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day,” one person said. “For the same amount of money, you can buy a lot more casual clothes.”