Question

                              whether,that,what,who,whoever 

   Campaign workers use whatever helps them.1. telephones can be very helpful has been shown in many elections. 2. will win the election is what people want to know. Callers ask whoever answers a series of questions. 3. a candidate is popular is a vital matter. Another question may be 4. the major issues are.

Voters usually give 5. is calling an answer.

Answer 1

1. That   2. Who   3. Whether

4. what   5. whoever