Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_28211988_1 ( host VARCHAR, mens_singles VARCHAR )

### Question ###
Who are all hosts when men's singles is Ma Wenge?

### Accurate SQL ###

SELECT host FROM table_28211988_1 WHERE mens_singles = "Ma Wenge"