题目内容：

根据对话内容，在空白处填入恰当的表达。

A：Excuse me. Is there a ____1._______ near here? I want to buy some books on the computer.

B：No. The nearest one is on the Third Street.

A：___2.___ is it from here?

B：It's about three kilometers from here.

A：Can I go there by bus?

B：Yes, you can take a _____3.______ 18 bus.

A：Where's the bus stop?

B：Go down this ___4.____ and turn right at the second crossing. The bus stop is on your left.

A：Thanks a lot.

B：____5._____.