During preparations for a science fair, select every sentence that uses standard subject-verb agreement.
Are there enough equipment for both laboratories?
Is there enough equipment for both laboratories?✓Правильный ответ
Why does the volunteer teams arrive before sunrise?
Why do the volunteer teams arrive before sunrise?✓Правильный ответ
Объяснение
Equipment is uncountable and therefore takes singular is in the existential question, while the plural subject volunteer teams takes do in the inverted question. The competing sentences use plural are with equipment or singular does with teams.