There are a lot of signs here.(改为一般疑问句）1.There is some one nearby.(改为否定句）2.You should come.(改为否定句）3.Mr Smith is taking a walk in the park.(对in the park提问）4.The sign means"Be quiet"(改为否定句）

Are there a lot of signs here?
1.There isn't any one nearby.
2.You shouldn't come.
3.Where is Mr Smith taking a walk ?
4.The sign doesn't mean"Be quiet".

1.There isn't any one nearby
2.You shouldn't come
3.Where is Mr Smith taking a walk ?
4.The sign does't mean"Be quiet"

Are there a lot of signs here?（系动词提前）
1.There isn't any one nearby.(在系动词后加not,some在疑问句中改为any）
2.You should not come.
3.Where is Mr Smith taking a walk?(对地点提问,选择疑问词where）
4.The sign doesn't mean "Be quiet".