---John has got a very good job in the government .

---_______ he looks so happy.

A．No, doubt         B．No wonder        C．That’s because    D．It’s natural

—I regret____ to tell ____you that John has been fired.

—I can hardly believe my ears. He is such a fine worker.

A．telling  B．having told C．to tell  D．to have told

______ a leading role in a new film, John has a chance to become famous.

A．Offer             B．Offering           C．Offered           D．T o offer

John has put on so much weight recently that his mother has to ____all his trousers to his measure.

       A. let out      B. give away        C. bring in   D. make up

John has tried many ways to solve the physics problems, but _______ works.