( )16.While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
A. a ,/ B. a ,the C. /, the D. the ,a
( )17.It is ___world of wonders, _____world where anything can happen.
A. a. the B. a, a C. the, a D. /,/
( )18.The Wilsons live in ______A-shaped house near the coast . It is _______17th century cottage.
A. the, / B. an, the C. /, the D. an ,a
( )19.Tom owns ______larger collection of ______books than any other student in our class.
A. the ,/ B. a,/ C. a ,the D. /, the
( )20.For a long time they walked without saying ___word .Jim was the first t break _____silence.
A. the, a B. a ,the C. a ,/ D. the,/
( )21.There was ____time _____I hated t go to school.
A. a ,that B. a ,when C. the ,that D. the ,when
( )22.When you finish reading the book ,you will have ______better understanding of ______life.,
A. a, the B. the .a C. /,the D.a,/
( )23.I earn 10dollars ____hours as ____supermarket cashier on Saturday.
A. a, an B. the ,a C. an ,a D . an ,the
( )24The sign reads “in ease of___fire ,break the glass and push _____red button”
A. /,a B. /,the C. the ,the D. a ,a
( )25.I don’t like talking on ______telephone ; I prefer writing ____letter.
A. a, the B. the./ C. the ,the D. A ,/
( )26.Jumping out of ____airplane at ten thousand feet is quite _____exciting experience.
A. /, the B. /, an C. an. an D. the, the
( )27.One way to understand thousands of new words in gain _____good knowledge of basic word formation.
A. / B the C. a D. one
( )28.The cakes are delicious . He’d like have ______third one because _____second one is rather too small.
A. a, a B. the .the C. a ,the D. the ,a
( )29.A bullet hit the solider and he was wounded in ____leg.
A. a B .one C. the D. his
( )30.The warmth of _____sweater will of course be determined by the sort of ___wool used.
A. the, the B. the ,/ C. /, the D. /,/
