Ответ:
1. Is pupil going home? Who is going home? Is pupil going home or to school? Pupil is going home, isn`t he?
2. Does this faculty train students in different specialties? What specialties does this faculty train students? Does this faculty train students in different specialties or only one? This faculty trains students in different specialties, doesn`t it?
3. Did our students study English at school? Who studied English at school? Did our students study English at school or at home? Our students studied English at school, didn`t they?
4. Does my friend always do his work in time? Who always does his work in time? Does my friend or my enemy always do his work in time? My friend always does his work in time, doesn`t he?
5. Will a comfortable bus take us to the place of destination? What kind of transport will take us to the place of destination? Will a comfortable bus or train take us to the place of destination? A comfortable bus will take us to the place of destination, won`t it?
6. Have they already solved this problem? Who have already solved this problem? Have they or she already solved this problem? They have already solved this problem, haven`t they?
7. Must our students come here at 5 o’clock? Who must come here at 5 o’clock? Must our or his students come here at 5 o’clock? Our students must come here at 5 o’clock, mustn`t they?
8. Is some student waiting for you at the door? Who is waiting for you at the door? Is some student waiting for you at the door or in the classroom? Some student is waiting for you at the door, isn`t he (she)?
9. Will my friend leave for Moscow tomorrow? Who will leave for Moscow tomorrow? Will my friend leave for Moscow tomorrow or the after tomorrow
? My friend will leave for Moscow tomorrow, won`t he (she)?