How is Susan —Oh, she lives abroad, so I ______ ever see her.

The level of __________ in the river was falling.

下列各句中，划线的成语使用恰当的一项是（ ）

There is still a copy of the book in the library.Will you go and borrow_____—No，I’d rather buy_____in the bookstore.

r to stop poverty, the World Bank has ______ its focus to providingtechnical assistance and long-term loans to developing countries.