—What’s up, Jack?

—My money        . I must go to the bank to draw some of the savings out before I have none in hand.

A．has run out

B．is running out

C．has been run out

D．is being run out

某些具有正外部效应的产品，在市场上的数量是( )。

A．供过于求
B．供不应求
C．供求平衡
D．供远远大于求