－_______Whereis the dining hall－It’s behindthe classrooms.

Before we ran to the bus station, the bus . So we took a taxi to get there.

Did Vicky come back early last night— Yes. It was not yet nine o’clock she arrived home.

下列各句中，没有语病的一项是（ ）

How much shall I pay for the phone call — You ________. This is free of charge.