Help me please!! In need of help ASAP

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

Juan periodismo en la universidad hace dos años. a. estudiaron b. estudié c. estudiamos d. estudió

Read and select the correct option for the blank. an exchange student from mexico brings a typical food from his culture to school. after you ask, what can he say? —hola, amigo fernando. yo como el ceviche. —¿eres de méxico? —sí, soy de méxico y come la tortilla escribo la yerba mate escribe la yerba mate como la tortilla