Put 5 types of questions:

Industrial technology began with the development of the engine steam.

Scientists study a wide variety of subjects.

People can watch sports events on TV

Industrial technology began with the development of the steam engine.

Did industrial technology begin with the development of the steam engine? общий

Did industrial technology begin with the development of the steam or diesel engine? альтернативный

Industrial technology began with the development of the steam engine, didn't it. разделительный

What began with the development of the steam engine? к подлежащему

What did industrial technology begin with? специальный

Scientists study a wide variety of subjects.

Do scientists study a wide variety of subjects?

Do scientists or teachers study a wide variety of subjects?

Scientists study a wide variety of subjects, don't they?

Who studies a wide variety of subjects?

What do scientists study?

People can watch sports events on TV

Can people watch sports events on TV?

Can people can watch sports events on TV or on the Internet?

People can watch sports events on TV, can't they?

Who can watch sports events on TV?

What can people watch on TV?