求长一点的英文谜语，有点像哈四里的谜语，不是英文脑筋急转弯，谢谢！

1. A ship can contain only fifty persons. Now there is alreadyforty-nine person in it. At this time,a pregnant woman comes on andboards the ship. The shipsinks. Why? (有一艘船只能容纳50人，现在已有49人。这时一位孕妇上了船，船就沉了。为什么？)

   Because is a pigboat. (那是潜水艇。pigboat，潜水艇)

2. Two little boats without any sails. with passengers on board. they don't go on the river or sea . but travel on dry land. in the day boats pass to and from. but at night they are both empty. what are they?（有两条小船,没有船员有乘客,不走河海,走干地,白天船来来去去,晚上都空了,他们是什么?）
   shoes（鞋子）

3. It has a head ，but no neck．It has a body，but no warmth．NO feet，but can travel?
   （它有头，但没有脖子，有身体，但不温暖，没有脚，却能旅行。）
    A car（汽车）

4. have no arms and no hands.But I have four legs and a back.I can stand,but I can 't walk.What am I?（没有臂膀没有手， 但我有四条腿和一个背。 我能站，但不能走。 请问我是谁? ）
   A table.（桌子）
   

A ship can contain only fifty persons. Now there is alreadyforty-nine person in it. At this time,a pregnant woman comes on andboards the ship. The shipsinks. Why? (有一艘船只能容纳50人，现在已有49人。这时一位孕妇上了船，船就沉了。为什么？)
Because is a pigboat. (那是潜水艇。pigboat，潜水艇)

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