Answer:
The correct answers are filled up below:
Step-by-step explanation:
If p is true and q is false, the p ---> q is (always) true.
When p is false and q is true, then p or q is (always) true.
If p is true and ~ q is false, then p ---> ~ q is (always, ) false.
If p is true and q is true, then ~ p ---> ~ q is (always) true.
If p ---> q is true and q is true, then p is (always, ) true