Question 1 Report
Choose the option that best completes the sentence.
My uncle is not sure ____ the strange guests were.
The most suitable option to complete the sentence "My uncle is not sure ____ the strange guests were." is "who". Here's the explanation:
The word "who" is used when referring to people and asking about their identity. In the given sentence, "the strange guests" are people whose identity is uncertain to the uncle. Therefore, the correct word to fill the blank is "who".
In contrast:
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