问题
选择题
Many people have donated that type of blood; however, the blood bank needs ______.
A．some
B．less
C．much
D．more
答案
答案：D
考察代词。however之后的内容应与前面many产生呼应，有且只有D符合句意。句意：许多人捐献了那一血型的血；但是，血库需要更多（那样的血）。
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