— .Have they painted (to paint) the garage yet?
— No, they havent . He is still painting (to paint) it.
— How long have they been painting (to paint) it?
— They have been painting (to paint) it since he returned from a business trip.
— When did he return (to return) from his business trip?
— He returned (to return) a week ago.
— What were they painting (to paint) when he returned from the trip?
— They were painting (to paint) the walls in the garage.
1. Общий - Does computer require software?
Специальный - What does computers require?
Альтернативный - Does computer or TV set require software?
Разделительный - Computer requires software, doesn't it?
К подлежащему - What requires software?
2. Общий - Do all computers consist of hardware?
Специальный - Why do all computers consist of hardware?
Альтернативный - Do all computers or remote controls consist of hardware?
Разделительный - All computers consist of hardware, don't they?
К подлежащему - What consists of hardware?
3. Общий - Can computer hardware be divided into four categories?
Специальный - What can computer hardware be divided into four categories for?
Альтернативный - Can computer hardware be divided into four or seven categories?
Разделительный - Computer hardware can be divided into four categories, can't it?
К подлежащему - What can be divided into four categories?
4. Общий - Is random access memory used for creating and running programs?
Специальный - What is random access memory used for?
Альтернативный - Is random access memory used for running programs or saving them to a hard drive?
Разделительный - Random access memory is used for creating and running programs, isn't it?
К подлежащему - What is used for creating and running programs?
Have they painted the garage yet?
No, they haven't. He is still painting it.
How long have they been painting it?
They have been painted it since he returned from a business trip.
When did he return from his business trip?
He returned a week ago.
What were they painting when he returned from the trip?
They were painting the walls in the garage.