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1.At the time of the 2001 census, English was what was spoken by almost all people in Wales, while only 20.8% of the Welsh population could speak Welsh.
(A) was what was spoken
(B) it was spoken
(C) was to be spoken
(D) has been spoken
(E) was spoken
2.Their part of the reconstruction process that followed the Second World War, the nations of Western Europe took steps toward achieving greater political and economic integration.
(A) Their
(B) The
(C) It was
(D) As
(E) On
3.Although biologists have made tremendous progress in mapping the human genome, the genetic roots of most common diseases remained largely elusive.
(A) remained
(B) had remained
(C) remain
(D) are remaining
(E) remains
4.Africa is not nearly so mountainous as in Asia.
(A) so mountainous as in
(B) that mountainous as
(C) equally mountainous to
(D) as mountainous as
(E) that mountainous as in
