1. In recent years, a number of immigrants ______________ come from countries in the third world where undernourishment is prevalent. a. has b. have c. is d. are 2. You have to order your ticket as soon as you can, since the number of chairs _____________ limited. a. have b. has c. are d. is 3. A variety of skills ____________ necessary if you have an interest in wellness programming and educat..