Заполните пропуски, выбирая правильную форму глагола-(во множественном числе или в единственном числе): 1. the usa a highly developed railway system (have/has) 2. ship-building developed along the atlantic coast and also in san francisco (am, is, are) 3. the republican party organized in the 1850 (was, were) 4. philadelphia, near east coast agricultural mashines and locomotives (produse, produces)

1. The USA have a highly developed railway system (have/has)
2. Ship-building is developed along the Atlantic coast and also in San Francisco (am, is, are)
3. The Republican Party were organized in the 1850 (was, were)
4. Philadelphia, near east coast produces agricultural mashines and locomotives (produse, produces)