We all buy things on the （）of the moment; this is what the retail trade calls an "impulse buy. "

单项选择题Helen was so persistent that her husband （）at last.

A．conceded
B．converged
C．conceived
D．conferred

单项选择题I have omitted many things which （）a place in the book.

A．reserved
B．deserved
C．preserved
D．observed