I want to send Mary a card. She may it in a few days post. A. receive; for B. receives;

问题补充：

I want to send Mary a card. She may it in a few days post.

A. receive; for

B. receives; with

C. receive; by

D. receives; to

答案：

A. receive; for

B. receives; with

(答案→)C. receive; by

D. receives; to

解析：句意：我想寄给玛丽有一张卡片，通过邮政她可以在几天后收到。情态动词后加动词原形。通过……，用by.故选C。