1. Each nation has many people who_____ to take care of others. A. volunteer B. Volunteered C. voluntary D. voluntarily 2. Maria is______ because she's getting married today. A. excitingly B. excited C.excitement D.exciting 3. Many organizations try to protect children from_______ effects from society. A. harm B. unharmed C.harmless D.harmful 4. It is said that ______ exercise is beneficial for the development of not only children but adults as well. A. regular B.instant C. intense D. usual 5. Jennifer has to work________6 days a week. A. extra time B. overtime C. melt D. feel