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Question

кто? - the teacher suddenly came in the classroom 
что? - He is having breakfast and drinking tea now. 
как долго? - Pupils were writing a composition for three hours last week 
когда? - The train had already started, when we came to the station 
кто? что? - The doctor will have examined his last patient by six pm tomorrow 
почему? - I am very tired. I worked too much 
когда? I am sure you will have forgotten about everything just tomorrow 
когда? - Why are you worried? We will have exams in 4 days

Мария Ермилова · Accepted Answer

Who suddenly came in the classroom? 
What is he doing now? 
How long were pupils writing a composition last week? 
When had the train started/ When did you come to the station? 
Who will be examined by 6pm tomorrow? 
Why am I very tied? 
When will you have forgotten everything? 
When will we have exams?

Андрей Кравченко · Answer

Who will HAVE BEEN examined by 6P.M. tomorrow?