Answer: The pair of verbs that best completes this sentence are:
Ayer, mi prima se cayó de la bicicleta y se rompió la pierna.
Explanation:
We use the past tense (preterite tense ) to talk about past events and with finished actions. The following temporary expressions are usually used with the past tense: yesterday, the day before yesterday, last night, once, twice, last week, etc.
In this case:
- "Ayer" means "Yesterday"
- "Mi prima se cayó "means "My cousin fell".
- "De la bicicleta" means "from the bicycle"
- "Y se rompió la pierna" means "and broke her leg".