There is ____ Mr. Smith at the door who wants to speak to you.
A. a some B. certain C. some a D. a certain
At a rough estimate, Nigeria is ____ Great Britain.
A. twice big as B. as twice big as C. three times the size as D. three times the size of
Besides this, it also provides ______ other choices for its readers.
A. a bit of B. a great deal of C. a large amount of D. a large number of
--Mr.Smith is very strict______his students,isn’t he?
--Yes, he is.He is strict______his work as well.
A. with; in B. in; about C. in; with D. with; about
The speech by the mayor of Shanghai before the final voting for EXPO 2010 is strongly impressed ______ my memory.
A. to B. over C. by D. on
We must ______ known to all that smoking is harmful to heart.
A.this B. that C. it D. the matter
