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