英语翻译1.那边有个小狗系在树上.2.过去在塔的后面有一个学校.3.屋里好像没人.4.这手机一定是有毛病.5.过去在岛上

1.There's a puppy tied to a tree.
2.There used to be a school behind the tower .
3.There's nobody in the house.
4.There must be somethinng wrong with the cellphone.
5.There used to be some dangerous animals on the island.
6.There happened to be an old friend of mine in the club.
7.There are many students planting trees on the hill.
二楼的4.There must have .是不对的,
一楼的7.there is many students应该是there are
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