问题补充：
The boy doesn’t speakhis sister, but his written work is very good. [来
A. as well as
B. so good as
C. much better than
D. much worse than
答案：
(答案→)A. as well as
B. so good as
C. much better than
D. much worse than
解析：表示前者不如后者，用not as/so…as结构，句中speak是动词，所以用副词修饰，选A。
