4 типа вопросов к каждому предложению. 1. A mainframe is the most powerful type of computer. 2. Touchpads are a common feature of laptop computers.

A mainframe is the most powerful type of computer. -

Is a mainframe the most powerful type of computer? (General question)

What is the most powerful type of computer? (Special question)

Is a mainframe the most powerful type of computer or car? (Alternative question)

A mainframe is the most powerful type of computer, is not it? (Disjunctive question)

Touchpads are a common feature of laptop computers. -

Are touchpads a common feature of laptop computers.? (General question)

What are touchpads? (Special question)

Are touchpads a common or uncommon feature of laptop computers? (Alternative question)

Touchpads are a common feature of laptop computers, are not they? (Disjunctive question)