Since the forest has been destroyed by a big fire, a large ______ of trees ______ to be planted on the mountain．A.number; hasB.amount; hasC.quantity; haveD.sum; have
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C解析第一空考查短语的用法：tree是可数名词，可以用a large number of或a large quantity of修饰，如果是A项，第二空应该填have，C项正确，因为a large quantity of后面修饰可数名词复数谓语用复数。选C。