Quiz on subject-verb agreement PLEASE HELP ME
1,Your friendship over the years and your support on a wide variety of issues (have/has) meant a great deal to us.
2,Two-week-old onion rings in the ashtray(are/is) not a pretty sight.
3,Every stone, leaf, and blade of grass(were/was) examined during the investigation.
4,There(was/were) a peanut cartoon and a few Mother Goose rhymes pinned to the bulletin board.
5,The main source of income for Trinidad(is/are) oil and pitch.
6,The senator's family(was/were) one of the oldest in Rome and claimed descent from the early Etruscan kings.
7,Only one of the many architectural treatises written in antiquity survive.
