1) who is the best pupil in our class?
2) is harry the best pupil in our class?
3) who is harry?
4) harry is the best pupil in our class, isn't he?
5) is harry the best pupil in our class or Jenny is better?
6) are ann and tom good at maths?
7) who is good at maths?
8) what are ann and tom good at?
9) ann and tom are good at maths, aren't they?
10) are ann and tom good at maths or science?