How do the shops make money if they sell at such low prices? —Manufacturers, it seems, are willing to bring down prices_____ big volume purchases.[ ]

Never before _____in greater need of modernpublic transport than it is today

下列各句中，划线的实词解释有误的一项是（ ）

_______ excited her parents most was that he was admittedto his dream college.

Many children，______ parents are away working in big cities，are taken good care of in the village.