It was too hard for the firefighters to get close to the burning building. All their attempts to rescue the people trapped were ______.

Did you see him yesterday—No, when I got to the airport, he a taxi for home.

My father works in a school. _______ goes to work early in the morning.

I refuse to accept the blame for something________was someone else’sfault.

下列各句中，没有语病的一句是