1

 prosper , incredible , budget , essential , inhabit

 5

 175

 Toefl

 2

 emerge , ooze , exhibit , retrospect , consistent

 5

 151

 Toefl

 3

 discernible , sporadic , speck , minimize , levy

 5

 189

 Toefl

 4

 hone , exceptional , evident , avid , potent

 5

 131

 Toefl

 5

 established , dominant , accumulate , staggering , decay

 5

 206

 Toefl

 6

 artifact , reluctant , task , faith , perceptive

 5

 159

 Toefl

 7

 allow , expertise , remarkable , precise , determine

 5

 175

 Toefl

 8

 traditional , magnificent , limit , comprise , susceptible

 5

 215

 Toefl

 9

 thoroughly , affluence , tailor , cargo , discern

 5

 180

 Toefl

 10

 arbitrarily , block , inhibit , expanse , disparate

 5

 186

 Toefl