$\text{Chiii S A D}$

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 $2:$

$1. B$

$2. A$

$3. C$

$#Nocopy.$

1.teaches

2.empty

3.expensive

4. also

5. cheapest

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

1. d serve

2.c my

1.b

2.a

3.a