( )1. The two ladies are _______ the same age, but there seems to be ten years ______ them.
A. at; between B. about; among C. at; among D. of; between
( )2. Li Feng’s __________ of devotion to others will be remembered forever in China.
A. achievement B. service C. thought D. spirit
( )3. Someone called me up in the middle of the night, but he hung up ______ I could answer the phone.
A. if B. since C. until D. before