完成句子。
(1) A: ________ is the park?                  B: It’s in front _______ the supermarket.
(2) A: ________ can I get to the cinema?       B: Go straight ____ 20 minutes.
(3) A: ____________ me, is this your book?     B: Yes, it _________.
(4) The post office is _________ to the bookstore.