Final answer:
The sentence 'I don't know what time it is' does not contain an obligatory context for the uncontractible copula BE; hence, the proper answer is false.
Step-by-step explanation:
The student's question asks whether the sentence "I don't know what time it is" contains an obligatory context for the uncontractible copula BE (am, are, is, was, were).
The answer is false. In this sentence, "is" could be contractible because it's used in a subordinate clause, and the rule of the uncontractible copula doesn't apply as it would in main clauses where the copula serves as the main verb followed by an adverbial of time or place, an adjectival, or a noun phrase.
The sentence in question does not demonstrate an obligatory context for the uncontractible copula.
In the sentence 'I don't know what time it is', the uncontractible copula BE is used correctly. This sentence is an example of the pattern: (subject) + (be verb) + (adverbial of time or place).
The adverbial of time in this sentence is 'what time it is' which provides the obligatory context for the use of the uncontractible copula BE. Therefore, the statement is True.