The phrase <em>with exciting plots </em>is used as D. adjective phrase, because it modifies the noun <em>books.
</em>What kind of books? - (The ones) with exciting plots. <em>
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The word being asked in the given above is technical courses. Technical schools is a general term is a general term that is concerned more on the employment, preparing students for skilled or trained labors. The courses include welding, culinary, office management, etc.
She doesn't want him to know
<span>Two weeks later, Dr. Jekyll gives a small dinner party, for which, we gather, he is well known, for the narrator refers to it as being "one of his pleasant dinners." Five or six of Dr. Jekyll's old cronies are invited, and among them is Mr. Utterson. As usual, the food is superb, the wine good, and Utterson manages to be the last guest to leave.</span>
