I have known Jack ________ last month.

1.   ?    since
2.   ?    for

They have lived there ________ three years.

1.   ?    since
2.   ?    for

I have had this jacket ________ a week. It's almost new.

1.   ?    since
2.   ?    for

We have been here ________ two hours.

1.   ?    for
2.   ?    since

She has played tennis ________ she was six.

1.   ?    for
2.   ?    since

I haven't met Peter ________ Christmas.

1.   ?    for
2.   ?    since

Dave has worked at the post office ________ 1998.

1.   ?    for
2.   ?    since

Mark and Betty have been married ________ last summer.

1.   ?    for
2.   ?    since

Roy has been rich ________ he won the lottery. He didn't have much before.

1.   ?    for
2.   ?    since

Linda and Ben have had that dog ________ a month. I think they will keep it.

1.   ?    since
2.   ?    for