Preposition Use for Missing Child Scenario

This question tests the correct use of prepositions with time expressions, specifically in the context of the present perfect continuous tense ("has been missing"). The sentence describes a situation that started in the past ("yesterday") and continues to the present.

Analyzing Preposition Options

• on: This preposition is typically used for specific days of the week or dates (e.g., "on Monday", "on January 1st"). It doesn't fit the context of starting a period leading to the present.
• from: While "from" indicates a starting point, it's often used for ranges ("from Monday to Friday") or when the duration isn't the main focus, or in simpler past tenses. It's less common than "since" with the present perfect continuous for a specific past time point.
• since: This is the correct preposition. "Since" is used with the present perfect or present perfect continuous tense to indicate the starting point of an action or state that began in the past and continues up to the present moment. "Yesterday" is a specific point in time, making "since" the most appropriate choice. The sentence means the child went missing yesterday and is still missing. The structure would be: [Subject] + has/have been + [verb-ing] + since + [past time point].
• for: This preposition is used to indicate a duration or period of time (e.g., "for two hours", "for three days"). Since "yesterday" refers to a specific point in time and not a length of time, "for" is incorrect here.

Correct Sentence Structure

The sentence should read: The child has been missing since yesterday.

This usage correctly links the ongoing state of being missing to the specific time it began.