Q1- Classwork 3 Understanding Since and For

What is the main difference between 'since' and 'for'?

• 'Since' indicates a duration of time; 'for' indicates a specific point.

• 'Since' and 'for' can be used interchangeably in all contexts.

• 'Since' refers to a specific starting point; 'for' refers to a duration of time.

• 'Since' is used for future events; 'for' is used for past events.

Use 'since' in a sentence that indicates a starting point in time.

• She has been studying since last week.

• I have lived in this city since 2010.

• I will go to the store since tomorrow.

• We will meet since next month.

Use 'for' in a sentence that indicates a duration of time.

• I studied for my exam.

• I will study for the test tomorrow.

• I studied for three hours.

• I studied for a week.

Identify whether the following sentence uses 'since' or 'for': 'I have lived here ___ 2010.'

• from

• since

• for

• during

Identify whether the following sentence uses 'since' or 'for': 'She has been studying ___ three hours.'

• during

• after

• for

• since

Fill in the blank with 'since' or 'for': 'He has been my friend ___ we were kids.'

• during

• after

• until

• since

Fill in the blank with 'since' or 'for': 'They have been waiting ___ the bus for 20 minutes.'

• for

• since

• after

• during

Explain why 'since' is used in the sentence: 'I have known her since last year.'

• It indicates a future time of knowing her.

• It refers to a specific event that happened last year.

• It shows the duration of knowing her.

• It indicates the starting point of knowing her, which is 'last year'.

Explain why 'for' is used in the sentence: 'We will stay here for a week.'

• 'For' is used to express a location.

• The preposition 'for' is used to indicate the duration of time.

• 'For' signifies a condition of staying.

• The preposition 'for' indicates a reason for staying.

Create a sentence using 'since' that refers to a specific date.

• She has been studying since last week.

• I have lived here since January 1, 2020.

• We will meet since next Friday.

• I will go to the store since tomorrow.