1
.
I
have
been
here
____________________
7
am
.
2
.
They
have
studied
German
____________________
3
years
.
3
.
We
have
worked
here
____________________
we
were
22
years
old
.
4
.
She
has
lived
in
Canada
____________________
she
was
born
.
5
.
I
have
felt
sick
____________________
hours
.
