读一读，猜一猜。
此书不平凡，人人都要看。
一页读一天，读完整一年。
谜底( )
日历
矿浆浓度对浮选的影响主要表现在矿浆的充气、矿浆（）的浓度和生产量等方面。
The couple finally bought the house they wanted, for they______enough money.
A．had saved
B．were saving
C．would save
D．were to save
