i want to buy a new book.(a new book劃線) 答句;_______ _______you want to buy?

i want to buy a book.(a 劃線)答句：______ ______ _____do you want to buy?

---_____ ______are you?答句：twelve.

i live on the fifth floor.（the fifth 劃線）答句：______fioor do you live?

i go to work on foot because my home in near.( because my home in near劃線)答句：______ ______you go to work on foot?

用合適的介詞填空.

  1.thank you all______coming.

   2.look at______.(i)

   3.______(they)home is near mine.