问题
选择题
They met, ______ a few greetings and then settled down to their own business. [ ]
A. changed
B. spoke
C. exchanged
D. traded
答案
答案:C
They met, ______ a few greetings and then settled down to their own business. [ ]
A. changed
B. spoke
C. exchanged
D. traded
答案:C