Answer:
1. Era
2. estaban
3. tenía
4. había
5. funcionaba
6. venían
7. podían
Step-by-step explanation:
The imperfect past tense of the indicative is a frequent tense in Romance languages. It describes an action or state in the past whose time limits are not relevant, that is, a grammatical time of the past with a grammatical aspect. It is used in Spanish to express courses of past actions whose beginning and end are not specified.