I studied for this test……..three days straight.
a) For
b) Since
My family has lived here…….last March.
a) For
b) Since
She has worked there……she finished college.
a) For
b) Since
I have been calling you...half-an-hour.
a) For
b) since
Lisa and Jill have been at the library……….a long time.
a) For
b) Since
My teacher has been sick……..last Monday.
a) For
b) Since