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The new dictionaries are very useful. They        well and       already.

A.sell; have been sold outB.sold; had sold out
C.sell; sell outD.are sold; have been sold out

A

解析試題分析:某些可和well,easily等副詞連用的不及物動詞,如read,write,wash,sell等,可以主動語態表示被動含義,第一空就是這種用法,意思是它們很暢銷。由副詞already(已經)可知第二空用完成時態,意思是它們已經被銷售完。故選A。
考點:動詞的時態和語態。
點評:動詞的主、被動語態由主語與謂語動詞的關系決定,主語是動作的發出者用主動語態,是動作的接受在用被動語態;動詞的時態由時間狀語決定。

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New archaeological discovers suggest that trade between Europe and Asia along the Silk
Road probably began in some form many countries earlier than once thought. The findings, coupled with a widening range of scientific and historical research, could add a fascinating new
page to the epic of the Silk Road.
The latest and most surprising discovery is pieces of silk found in the hair of an Egyptian mummy from about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was previously thought to be used in Egypt. Other research may extend human activity along this route back even further, perhaps a million years to the migration of human ancestors into eastern Asia.
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B.extended human migration into eastern Asia
C.began a million years ago
D.primarily benefited the Egyptians
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