Shakespeare's language was English, and "has" is "has". An example is "Yond Cassius has a lean and hungry look: he thinks too much: such men are dangerous." (Julius Caesar). Sometimes, though, Shakespeare uses the word "hath" instead (this is a holdover from Middle English, the language of Chaucer two hundred years earlier), and his choice of one or the other appears to be random. A good example is Banquo's line in Macbeth: "The earth hath bubbles as the water has."
Elizabethan English is Modern English, just an early form of it.
Elizabethan English word for taste is the same as modern English. It hasn't changed.
"These" in Elizabethan English is exactly the same as it is in all other forms of Modern English: "these" e.g. "Where are these lads? Where are these hearts?" (Midsummer Night's Dream)
Private.
Elizabeth I
Ears. As in "Friends, Romans, Countrymen, lend me your ears." Elizabethan English is modern English--most words are the same now as they were then.
The Elizabethan period was between 1558 up to 1603. It was the golden age in English history and the height of the English Renaissance with flowering English poetry, literature, and music.
Elizabethan
whilst
Elizabethan
Early Modern English. Sometimes called Shakespearean English. If you read any Shakespearean play you will read English as it was then said in the Elizabethan era.
Betwixt is commonly used in Elizabethan English to mean between. The word betwixt is still in use today, although it is not commonly used.