1 . Huge________ (数量) of oil were spilling into the sea. (根据汉语提示单词拼写)
您最近一年使用:0次
2 . The change of q________ causes the change of quality. (根据首字母单词拼写)
您最近一年使用:0次
3 . He prefers q______ to quality when food is concerned.
您最近一年使用:0次