Since vs For

She has lived here _____ twenty years.

• for

• since

We have taught at this school ____ a long time.

• for

• since

She has lived here _____ 1980.

• for

• since

Alice has been married _____ three months.

• for

• since

We have taught at this school _____ 1965.

• for

• since

Alice has been married _____ March 2nd.

• for

• since

They have been at the hotel ______ last Tuesday.

• for

• since

They have been at the hotel ____ a week.

• for

• since

I have worked here _____ five years.

• for

• since

I have worked here _____1990.

• for

• since