Choose the two correct numbers in the '.' marked places of the multiplication below.



```
. 7 . 9
x 5
---------
3 3 9 4 5

```

Let the four-digit number being multiplied be represented as $\overline{A7B9}$.
According to the problem:

$$\overline{A7B9}\times 5=33945$$

To find the missing digits $A$ and $B$, we reverse the operation by dividing the product by 5:

$$\frac{33945}{5}=6789$$

By comparing the resulting number $6789$ with $\overline{A7B9}$, we find:

* First missing digit ($A$) = 6
* Second missing digit ($B$) = 8

Thus, the required pair is 6, 8.