【32】A．expendituresB．benefitsC．costsD．profits

[ A] expenditures [ B] benefits [ C] costs [ D] profits

[A] profit[B] benefit[C] success[D] welfare

【C20】A．instructiveB．efficientC．beneficialD．profitable

【C3】A．terribleB．possibleC．enjoyableD．profitable

【C9】A．debtB．priceC．costD．profit

【C10】A．an advantageB．a benefitC．an interestD．a profit