請教OG改錯2題 - 自學

1.The new lounge furniture has arrived and will be in place by the
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A B C

end next week.
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D

答案是D,請問是多了end嗎??或是其他原因
有點迷惑


2.Revitalization of the transportation system would be a major victor
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A B
for Glenville, which is showing signs of recovering following years of
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C
economic decline.
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D

答案是B,請問原因為何??

感謝!!

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