English - Advanced Grammar - Subject-verb agreement advanced - Choose the Correct Verb

18 sentences, choose is/are, was/were, has/have: (1) 'Everyone ___ invited.' (is/are) → is. (2) 'Neither the cat nor the dogs ___ outside.' (was/were) → were. (3) 'The flock of birds ___ flying south.' (is/are) → is. (4) 'There ___ several options available.' (is/are) → are. (5) 'Five dollars ___ no