wonder why he has been acting so strangely these days．—Recent pressure at work may ____ his behavior．

Waiter! Is the table by the window available—I’m sorry, sir. But that table has been ____.

China’s population is expected to increase to about 1.5 billion, ____ it will start to decline slowly.

下列各组加点词意义和用法相同的一项是

This is a new policy, and we will _________ next year.