1.—Mary, let's go out for dinner.
       —___ I don't have to cook.
       A.Believe it!          B.That's great!         C.All right.           D.Go ahead.
2.X-rays are also called Rontgen rays ___ the discoverer who first put them to use.
       A.in view of          B.in honor of          C.in case of             D.in place of
3. With a lot of difficult problems ___, the manager felt like a cat on hot bricks.
       A.to settle          B.settling               C.settled                D.being settled