Always, sometimes, and never on triangles

A scalene triangle is _______ an acute triangle.
1. Sometimes
2. Always
3. Never
A right triangle is ______scalene triangle.
An equilateral triangle is ______ a scalene triangle.
1. Always
2. Sometimes
3. Never
A right traingle ______ has a 90 degree angle.
1. Never
2. Sometimes
3. Always
A right triangle is ______ an obtuse triangle.
An isosceles triangle is _______ an acute triangle.
An isosceles triangle ______ has two sides congruent.
1. Sometimes
2. Always
3. Never
An obtuse triangle is ________ a scalene triangle.