Verified answer

1) Monica told me about that yesterday.

Did Monica tell me about that yesterday? = общий вопрос

Did Monica or Jess tell me about that yesterday? = альтернативный вопрос

What did Monica tell me about? = специальный вопрос

Monica told me about that yesterday, didn't she? = разделительный вопрос

Who  told me about that yesterday. = специальный вопрос к подлежащему

2) We had seen carmen before she rang.

Had we seen Carmen before she rang?= общий вопрос

Had we or they seen Carmen before she rang?= альтернативный вопрос

What had we seen before she rang?= специальный вопрос

We had seen Carmen before she rang, hadn't we?= разделительный вопрос

 Who had seen Carmen before she rang? = специальный вопрос к подлежащему

3) He was cooking a dinner at 5 p.m. yesterday

Was he cooking a dinner at 5 p.m. yesterday?= общий вопрос

Was he or she cooking a dinner at 5 p.m. yesterday?= альтернативный вопрос

What was he doing a dinner at 5 p.m. yesterday?= специальный вопрос

He was cooking a dinner at 5 p.m. yesterday, wasn't he?= разделительный вопрос

Who was cooking a dinner at 5 p.m. yesterday?= специальный вопрос к подлежащему