Sure, I'd be happy to help with that. In English, "since" and "for" are prepositions used to express time, but they are used in different contexts.
- "For" is used when we are talking about a duration of time. It tells us how long something has been happening.
- "Since" is used to refer to the starting point of an action or event. It tells us when something began.
Let's fill in the blanks accordingly:
for ten years
- Explanation: "For" is used because it specifies the duration of time (ten years).
since I was five
- Explanation: "Since" is used because it refers to the starting point when I was five years old.
since 8 o'clock
- Explanation: "Since" is appropriate here because it specifies the starting point in time (8 o'clock).
for two hours
- Explanation: "For" is used as it indicates the duration of time (two hours).
for ages
- Explanation: "For" is used because "ages" is a duration of time, albeit a vague one.
for six months
- Explanation: "For" is appropriate here as it specifies a duration of time (six months).
since lunch-time
- Explanation: "Since" is used because it indicates the starting point in time (lunch-time).
since we moved to this town
- Explanation: "Since" is used because it refers to the starting point when we moved to this town.
for three minutes
- Explanation: "For" is appropriate as it specifies a duration of time (three minutes).
I hope this helps clarify the use of "since" and "for" in these sentences!