Choose the correct preposition.
I had not slept or eaten anything properly _____ two days.

Question

Choose the correct preposition. 
I had not slept or eaten anything properly _____ two days.

Accepted Answer

The correct preposition to use in the sentence "I had not slept or eaten anything properly _____ two days" is "for," which is Option 4. Here's a detailed explanation supporting this choice:

1. **Explanation for Option 4 ("for"):**
   - The preposition "for" is used to indicate a period or duration of time. In this context, "for" is appropriate because it specifies the length of time over which the action (not sleeping or eating properly) has occurred. The sentence is describing a continuous state that has lasted for two days, making "for" the correct choice to convey this duration.

2. **Why Option 1 ("since") is incorrect:**
   - "Since" is used to indicate the starting point of an action or event that continues up to the present or a specific point in time. It is typically followed by a specific time or event (e.g., "since Monday" or "since the meeting"). In this sentence, there is no specific starting point mentioned, only a duration, so "since" is not appropriate.

3. **Why Option 2 ("from") is incorrect:**
   - "From" is generally used to indicate the starting point of a range or a movement away from a place or time. It is often paired with "to" or "until" to show a range (e.g., "from morning to night"). In this sentence, there is no range or movement being described, just a duration, so "from" does not fit the context.

4. **Why Option 3 ("in") is incorrect:**
   - "In" is used to indicate a period of time within which something occurs (e.g., "in the morning," "in two hours"). It is not used to describe a continuous duration over which an action has been happening. In this sentence, the focus is on the duration of two days, not a specific time within those days, making "in" unsuitable.

In summary, "for" is the correct preposition because it accurately conveys the duration of time over which the actions of not sleeping or eating properly have taken place. The other options do not appropriately fit the context of the sentence as they either imply a starting point, a range, or a specific time within a period, none of which are relevant here.