The boy doesn't speak his sister, but his written work is very good.
A. as well as
B. so good as
C. much better than
D. much worse than
网友回答
(答案→)A. as well as
B. so good as
C. much better than
D. much worse than
解析：副词短语的考查。Speak是动词应用well来修饰，根据句意可以判断小男孩的口语不如他姐姐，但是他的书写非常好。