Complete the stressed student's morning reminders by dragging the correct words into the blanks.

I must remember to buy coffee before my morning lecture. The syllabus says that everyone has to complete the online quiz before class begins.

I must remember to buy coffee before my morning lecture.

The modal verb must is followed directly by a base verb (like remember). If we wanted to use have, we would need to include "to" (I have to remember).

The syllabus says that everyone has to complete the online quiz before class begins.

The pronoun "everyone" is singular, so it requires the singular verb form has to. "Have to" is plural, and "musts" is not a real word (modal verbs never take an -s ending!).