What are the differences between Type 5 and Type 6？ Type 6 is different from Type 5, becau

Who was said to start the custom of celebrating Thanksgiving Day?

It was said that the ______in Massachusetts started the custom.

How many immigrants were permitted to enter the country between1820 and 1973?

______immigrants were permitted to enter the country between 1820 and 1973

Where did the first immigrants come from?

They came from______.

What did the old man say when the train started?

The old man said the owner of the bag must have______.

What did the old man see lying on the seat?

He saw______lying on the seat.

写信人：Zhu Min

写信时间：2006年1月14日

收信单位：深圳大酒店火车票务中心

电子邮件网址：S-hotel-tickets@yahoo. com. cn

预订火车票：一张25日108次快车深圳到北京卧铺票，三张27日1532次列车深圳到郑州的硬座票。同时希望了解该段时间学生票是否打折。要求尽早告知是否有票，票价以及是否需要预付押金等。

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For those who are almost blind to all colors, what kinds of colors can they only see?

They can only see ______.