三、阅读对话，在横线上写下单词的正确形式。

Fangfang: What are you doing, Daming?
Daming: I'm a letter to Lingling.
Fangfang: Did she a letter to you?
Daming: Yes, she a letter to me last week.
Fangfang: What did she say in the
letter?
Daming: She had some English food, and she liked sandwiches best.

writing; write; wrote

1. 第一空：问句用现在进行时询问正在做的事，答语的现在进行时结构为"be动词+动词的现在分词"，write的现在分词形式是writing，因此填writing。
2. 第二空：这是由Did引导的一般过去时的一般疑问句，助动词Did后面需要接实义动词的原形，因此填write。
3. 第三空：句中有表示过去时间的标志词last week（上周），句子要用一般过去时，谓语动词要使用write的过去式wrote，因此填wrote。

阅读下面的故事,想想作者想告诉我们什么道理。
The duck and the cat
A brown duck meets a sad cat and asks him, "What's the matter with you? Can I help you?" The cat says nothing but leaves.

The duck catches up with(追上) the cat and says, "Please tell me, OK? I can do a lot of things for you." "Oh, no. You can't." The cat shakes his head and goes away.
The duck keeps up with(跟着) the cat and asks him again. The cat cries,
"I want to give some flowers to my mother on Mother's Day. But I can't find flowers." The duck says happily, "I can help you."
The duck points to the other side of the river and says, "Look there! There are many beautiful flowers." So the cat climbs up a tree, "Wow, how beautiful!"
"But I can't swim. How can I get there?" The cat is worried. The duck says, "Don't worry. I can swim. You can just sit on my back."
In the river, the duck tells the cat, "If(如果) we help each other, we can do many things."
你从中得到的启示：

我们要学会互帮互助、彼此协作，很多单凭一个人的力量难以完成的事情，通过互相帮助就可以顺利做成。

这个故事讲述了小猫想在母亲节给妈妈送花，却因为不会游泳没法抵达开满鲜花的河对岸，热心的鸭子主动利用自己会游泳的优势帮助小猫，故事结尾直接点明核心逻辑，我们可以结合情节提炼出对应的道理。