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_name_85 (host_city VARCHAR, president_in_office VARCHAR, year VARCHAR)

### Question ###
In which host city was Margaret Thatcher the President-in-Office in 1981?

### Accurate SQL ###

SELECT host_city FROM table_name_85 WHERE president_in_office = "margaret thatcher" AND year = 1981