The clock ______ last week has gone wrong.

You ______ be serious! You’re actually going to lend him money again？.

There is _______ interesting book on the teacher’s desk.–Oh, ______ book is Wei Fang’s.

The old man was seen _______ in the park at 7:00 a.m. yesterday.

_____ at the news that I didn’t know what to say to comfort her.