помогите с английским.. пожалуйста...)

Question

английский:) помогите, пожалуйста, поставить 1 предложение в отрицательную форму, а 2 и 3 в вопросительную,: ) 
 
1.The train develops a speed of 130 km/h on some sections. 
2. The designers are making different in the construction of the locomotives. 
3.Electronics became very important in all branches of industry.

Любовь Горячева · Accepted Answer

1.Does the train develop a speed of 130 km/h on some sections? 
2. Are the designers making different in the construction of the locomotives? 
3.Did Electronics become very important in all branches of industry?

Александр Фатюхин · Answer

1. The train doesn't develop a speed of 130 km/h on some sections. 
2. Are the designers making different in the construction of the locomotives? 
3.Did Electronics become very important in all branches of industry?