Though many scientific breakthroughs have resulted from mishaps it has taken brilliant
thinkers to recognize their potential.
A. accidents B. misunderstandings
C. incidentals D. misfortunes

Carpets from countries such as Persia and Afghanistan often fetch high prices in the United
States.
A. Artifacts B. Pottery C. Rugs D. Textiles

I could see the finish line and thought I was home and dry.
A. hopeless B. hopeful C. successful D. unsuccessful

When I came, the salesperson was _______ to the customers how to use a new kind of
washing machines.
A.demonstrating B.teaching C.exposing D.playing

________ of the students in our class could solve this math problem.
A.Neither B.Not much C.None D.Not

Camp David __________ the official country home of the U.S presidents.
A.that is B.it is C.is D.that it is

I don’t believe a word he says. I think he ________.
A.is laying B.lied C.telling the lie D.is lying

She ________ her husband’s job for his ill health.
A.acused B.claimed C.blamed D.caused

The boy was ________ by a family in the countryside.
A.brought up B.reared C.grown up D.bred

He thinks you are _________ your time looking for a job in this town. There’s not much
to do here.
A.wasting B.missing C.losing D.spending