Ms. Jefferson will not be back in school until she is (well).
When I sat down on the couch, my sister moved (over).
Did you (test) the batteries before you installed them?
I have to tell if the word in () is a verb, adjective, adverb, preposition, or interjection
1.well-adverb
2.over-adverb
3.test-verb
1. Although "well" is usually an adverb, in this sentence "well" is an adjective.
http://dictionary.reference.com/browse/well
The other two are correct.
To determine the part of speech of a word, you can look at its function in the sentence and consider the context in which it is used.
1. "Well" in the sentence "Ms. Jefferson will not be back in school until she is (well)" is an adverb. It modifies the verb "is" by answering the question "how?" or "in what manner?" It describes the state of being for Ms. Jefferson.
2. "Over" in the sentence "When I sat down on the couch, my sister moved (over)" is an adverb. It describes the direction or movement of the action of moving. It answers the question "where?".
3. "Test" in the sentence "Did you (test) the batteries before you installed them?" is a verb. It is the main action of the sentence, indicating that the subject performed the action of testing.