Well, which one is "external?" Headaches and stomachaches are known to exist internally, isolation is setting yourself apart which may or may not be noticed, withdrawal is declining yourself from something, while an outburst of anger is very clearly seen and heard by all. All in all, I would say D.
3 is c and 4 is i think d
Answer:
introduced
Explanation:
Past Tense = introduced
Present Participle = introducing
Infinitive = introduce
Answer:
<u><em>A.)</em></u>
<u><em>Too Narrow</em></u>
Explanation:
Hope this helps:)