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1.One-third of the area _____ covered with green trees.About

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1.One-third of the area _____ covered with green trees.About seventy percent of the trees _____ been planted.
   A.are; have          B.is; has           C.is; have           D.are; has
2.The number of teachers in our college _____ greatly increased last term.A number of teachers in this school _____ from the countryside.
   A.was; is             B.was; are          C.were; are         D.were; is
3.What _____ the population of China?One-third of the population _____ workers here.
   A.is; are              B.are; are          C.is; is           D.are; is
4.Not only he but also we _____ right.He as well as we _____ right.
   A.are; are             B.are; is           C.is; is           D.is; are
5.What he’d like _____ a digital watch.What he’d like _____ textbooks.
   A.are; are             B.is; is         C.is; are         D.are; is
6.He is one of the boys who _____ here on time.He is the only one of the boys who ____ here on time.
   A.has come; have come   B.have come; has come C.has come; has come  D.have come; have come
7.Either you or he _____ interested in playing chess._____ you or he fond of music at present?
   A.are; Are            B.is; Are             C.are; Is         D.is; Is
8.Many a professor _____ looking forward to visiting Germany now.  Many scientists _____ studied animals and plants in the last two years.
   A.is; have             B.is; has           C.are; have         D.is; are
9.A knife and a fork _____ on the table.A knife and fork _____ on the table.
   A.is; is              B.are; are             C.are; is         D.is; are
1.C 2.D 3.A 4.B 5.B 6.B 7.A 8.A 9.C