In which sentence does the verb agree with the subject?

a. the orchestra performs after this dance routine.

b. the group lift the heavy box onto the truck.

c. a flock of ducks were flying toward the lake.

Match the definition to the term. 1. pronouns or verbs used to show the person speaking, the person spoken to person 2. a form of noun, pronoun, or adjective used to show its relation to other words gender 3. the grouping of nouns into the classes masculine, feminine, and neuter case 4. an inflection or word form that shows whether one or more than one is meant number 5. pronouns that show by their form personal pronouns