--Has Peter handed in his paper yet?---I’m not sure. He _______ on it last week.
—I am thinking of the test tomorrow. I am afraid I cannot pass this time. —_________! I am sure you will make it.
It took the police a long time to find some evidence. The new evidence led to ____________.
The flowers his friend gave him will die unless every day.
— Have you finished your experiment report, Jane? — Oh, my God. I’ve _____ forgotten all about that.
People in Shaanxi are proud of they have achieved in the past ten years.