（A） inhabitants were forced to withdraw to the land bordering the Nile from their hunting grounds
（B） inhabitants had been forced to withdraw from their hunting grounds to the land that bordered the Nile
（C） inhabitants were forced to withdraw from their hunting grounds to the land bordering the Nile
（D） inhabitants having been forced to ， withdraw from their hunting grounds to the land that bordered the Nile
（E） inhabitants withdrew， because they were forced to， from their hunting grounds to the land bordering the Nile
14.During the Great Depression ， industrial output fell by nearly fifty percent from its peak in 1929 down to its nadir in 1933.
（A） During the Great Depression ， industrial output fell by nearly fifty percent from its peak in 1929 down to its nadir in 1933
（B） During the Great Depression ， industrial output fell by nearly fifty percent from its peak in 1929 to its nadir in 1933
（C） At the time of the Great Depression， industrial output fell by almost fifty percent from its 1929 peak down to its 1933 nadir
（D） At the time of the Great Depression， industrial output fell by almost fifty percent from it peak in 1929， by nearly fifty percent， to its nadir in 1933
（E） During the Great Depression， industrial output fell from its peak in 1929 to its nadir in 1933 by nearly fifty percent
15.The winds that howl across the Great Plains not only blow away valuable topsoil， thereby reducing the potential crop yield of a tract of land， and also damage or destroy young plants.
（A） and also damage or destroy
（B） as well as damaging or destroying
（C） but they also cause damage or destroy
（D） but also damage or destroy
（E） but also causing damage or destroying
16.The Federal Reserve Board's reduction of interest rates on loans to financial institutions is both an acknowledgement of past economic trends and an effort to influence their future direction.
（A） reduction of interest rates on loans to financial institutions is both an acknowledgement of past economic trends and an effort
（B） reduction of interest rates on loans to financial institutions is an acknowledgement both of past economic trends as well as an effort
（C） reduction of interest rates on loans to financial institutions both acknowledge past economic trends and attempt
（D） reducing interest rates on loans to financial institutions is an acknowledgement both of past economic trends and an effort
（E） reducing interest rates on loans to financial institutions both acknowledge past economic trends as well as attempt
