If ____ mobile phones in class, you will have to be punished according to the school rules.[ ]

下列各句中，没有语病的一句是（3分）

We are sorry to have to announce that the Leeds train that _____ due to arrive at 12 ： 20 has been delayed by one hour and will now arrive at 13 : 20

When designing your house, you’d better ____ land for a garden．

下列加点字注音完全正确的一项是（ ）