Questions 19 to 22 are based on the conversation you have just heard.

A．She should phone the post office for her request in the morning.
B．She can hire a mail carrier to help her.
C．The post office doesn’t offer this kind of service.
D．The post office will send the package to her in any case.

A．They eat as many insects as spiders.
B．They eat more insects than spiders.
C．They can’t compare with spiders as destroyers of insects.
D．They destroy a larger fraction of insects than spiders.