1: if p is true and q is true, then ~ p --> ~ q is true.
a: always
b: sometimes
c: never
2: if p is true and ~ q is false, then p --> ~ q is false.
a: always
b: never
c: sometimes
3: if p is true and q is false, the p --> q is .
a: always
b: sometimes
c: never
4: when p is false and q is true, then p or q is true.
a: always
b : never
c: sometimes
5: if p --> q is true and q is true, then p is true.
a: always
b: sometimes
c: never

In if statement, the result will be false if the hypothesis is true but the conclusion is false. Other combination will result in true.
Most of the statement will be always or never. Sometimes statement more frequently found in a problem with a case, not in a problem with an equation like this. 
1:
p is true
q is true,
then ~ p --> ~ q
false --> false
is always true.

a: always
The result of the logical statement is true. So, it will always be true.

2: 
p is true
~ q is false,
then p --> ~ q
true --> true
is never false.
 
b: never
The result of the logical statement is true. So, it will never be false.

3: If
p is true
q is false,
then p --> q
true-->false
is never true.

c: never
The result of the logical statement is false. So, it will never be true.

4:
p is false
q is true,
then p or q
false or true 
is always true.

a: always
When using or statement, you only need 1 true statement to get a result as true.

5: If
p --> q is true
q is true,
then p is true.

 
b: always
The value of p will always true because if the value of p is false there is no chance that p-->q would result in true.
The answer will be different if q=false because in this case p=false still giving true result.