You can type special characters in word. Take Word20 16 as an example, the specific steps are as follows:

1, create a new word and open it, and then click Insert;

2, then click on the symbol/other symbols;

3. In the symbol window that pops up, select "Cambria Math" as the font and "symbol similar to letters" as the subset;

Then pull down the activity bar on the right, and you can see it? , click the left mouse button to select it, then click Insert/Cancel;

5. Click Cancel to close the symbol window, and then you can enter "?" Yes