$\text{Chiii S A D}$
Active Activity.
Part $2:$
$1.$ Teaches
$2.$ Empty
$3.$ Expensive
$4.$ Also
$5.$ Cheapest
$IV:$
Part $1:$
$1.$ My mother starts work at thirty seven
$2.$ Nguyet is unhappy because she misses her parents
$3.$ The yard is very noisy until the bell rings
$I:$
Part $1:$
$1. D$
$2. C$
Part $2:$
$1. B$
$2. A$
$3. C$
$#Nocopy.$