I. Fill the blanks with suitable verb tense. 1. When Hoa arrived at the theater, the film ____________(start). 2. He ____________ (live) in Laos before he went to Vietnam. 3. She ____________ (not/use) smartphone before, so I showed her how to use it. 4. After Lan ____________ (eat) the cake, Lan began to feel sick. 5. After they ____________ (finish) lunch, they went out. 6. If he ____________ (listen) to me, he would have got the job. 7. They were late for the flight because they ____________ (forget) their passports. 8. The leaf was yellow because it ____________ (not/rain) all summer. 9. She (not / be) ____________ to Hanoi before 2018. 10. She (win) ___________ the gold medal before the age of 18.