下列各句中，没有语病的一句 （ ）

Scientists warn that El Nino _____ the world this coming summer.

The new school has been completedIt _____ very beautiful

Have you found the poor dog yet— Yes. But he was _______ when we found him. The bad weather killed him.

reme weather, a worn tyre can break easily______ it’s mended, as is often the case.