10 They agreed to modify their policy．
A clarify
B define
C change
D develop
11 The dentist has decided to extract her bad tooth．
A take out
B break off
C push in
D dig up
12 The economy continued to exhibit signs of decline in September．
A play
B show
C send
D tell
13 This table is strong and durable．
A long-lasting
B extensive
C far-reaching
D eternal
14 He endured great pain before he finally expired．
A fired
B resigned
C died
D retreated
15 The girl is gazing at herself the mirror．
A smiling
B laughing
C shouting
D staring