你想知道早上八点上什么课，应问（）

A.What subject do you have,Mary

B.What subject do you like best,Mary

C.What do you do,Mary

A.What's that

B.What's this

A.What's your favourite book

B.What's the book about

C.Why do you like this book

A.What’s in the classroom

B.Where’s the classroom

A.What is the man doing

B.What are the men doing

A.Where is it

B.Where is she from

C.Where are you from

A.When is your birthday

B.Whose birthday is in August

C.Is your birthday in August