Answer:
No, first is not a preposition.
Answer:
commanded adherence to the rules.
Explanation:
have command of: such as. : to have at one's immediate disposal commands many resources
Answer:
T
Explanation: I got it Right
Hope This helps!
Answer;
A search engine uses machines to index webpages; a gateway is compiled by experts or librarians.
Explanation;
Gateway pages are pages specially optimized for one search engine and 1-3 keywords. Gateway pages or doorways stand on their own, separate from the rest of a site.
A search engine is a software designed to search for information on the internet.
