Answer:
Shakespeare's work includes 154 sonnets and 38 plays; while his earlier plays were comedies and histories, his later work focused on tragedy (e.g. "Macbeth"). Shakespeare's reputation grew after his death and especially in the 19th century when he became the world's most celebrated dramatist.
Amateur is a beginner, not professional. But a professional athlete is highly trained :)
I believe the answer is C.
The answer is option D: adverb.
<em>Sometimes </em>is an adverb of frequency, which indicates how often something happens. Adverbs of frequency are usually used for repeated or periodic activities, so they often go with the present simple tense. Other examples of adverbs of frequency are: <em>always</em>, <em>usually</em>, <em>often </em>and <em>never</em>.