Who are all hosts when men's singles is Ma Wenge?
CREATE TABLE table_28211988_1 (host VARCHAR, mens_singles VARCHAR)
SELECT host FROM table_28211988_1 WHERE mens_singles = "Ma Wenge"
### Context: CREATE TABLE table_28211988_1 (host VARCHAR, mens_singles VARCHAR) ### Question: Who are all hosts when men's singles is Ma Wenge? ### Answer: SELECT host FROM table_28211988_1 WHERE mens_singles = "Ma Wenge"