1. limited

2. widely available

3. incrcasing

4. decreasing

1. conduct in certain "situations"

2. change, so does

3. the "rules" of

4. As the "times"

1. Roman numericals

2. are written

3. from left to right using the principle

4. of addition

1. involved

2. dreadful

3. Unimportant

4. humiliating

1. Please

2. scold

3. cpddle

4. diaper