Unit 10 - Grammar

​since

for

​What's difference between both sentences?🤔

​

-I lived in Miami for four years.

​​

-I’ve lived in Miami for four years.​

üTo express the lenght (duration) of this event.

​

ü​for periods of time.

​When to use for...

​He has studied for two hours.

​He has been here for two hours.

üTo show when an event started.

​

ü​Specific point in the past time.

​When to use since...

​He has studied since two o'clock.

​since

​He has been here since six o'clock.

​since

Multiple Choice

I have been here _____twenty minutes.

• since

• for

Multiple Choice

John hasn't called _____February.

• since

• for

Multiple Choice

I have been here ______9 o'clock.

• since

• for

Multiple Choice

Camilo and Rosa have worked here ______ 1995.

• since

• for

Multiple Choice

You've played football _____ ten years.

• since

• for

Multiple Choice

I haven't had so much fun ...... I was in high school.

• since

• for

Multiple Choice

We've been waiting ...... two hours.

• since

• for

Multiple Choice

His car is old. He has had it ...... 1975.

• since

• for

Multiple Choice

We are going to a concert on Friday night, but we haven’t bought the tickets _____.

• yet

• already

Multiple Choice

My boss hasn’t sent a reply ______.

• yet

• already

Multiple Choice

We’ve _____had spaghetti three times this week.

• yet

• already

Multiple Choice

We have _____ talked about this problem.

• yet

• already