题干
I ______ Mr. Smith since he moved to Shanghai.
A：didn't hear from
B：don't hear from
C：haven't heard from
D：won't hear from
答案(点此获取答案解析）
C
I ______ Mr. Smith since he moved to Shanghai.
A：didn't hear from
B：don't hear from
C：haven't heard from
D：won't hear from
朝（的灭亡）也体现了孟子的一个思想的正确……”这个正确的思想是
