Foreign Service Institue, Unit 5, Exercise 1 Substitution Drill
a
b
c
d
e
f
g
h
a
b
c
d
e
f
a
b
c
d
e
f
g
a
b
c
d
a
b
c
d
e
f
g
h
i
a
b
c
d
e
f
g
h
i
a
b
c
d
e
f
g
h
i
a
b
c
d
e
f
g
a
b
c
d
e
f
a
b
c
d
e
f
a
b
c
d
e
f
g
h
a
b
c
d
e
f
g
a
b
c
d
e
f
g
h
a
b
c
d
e
f
a
b
c
d
e
f