<span>A taciturn person might be snobby, naturally quiet, or just shy.</span>
<u>Answer</u>:
Present Perfect Continuous: "I have not been allowing this to happen."
<u>Explanation</u>:
Present Perfect Continuous Tense indicates that something started in the past and is continuing at the present time.
Answer:
That would be a research topic
Explanation:
It is not an essential piece of knowledge to know, a general topic would be "gender and education", and exploration would be extending research on a pre-existing topic. Therefore it is a research topic.