Виберіть відповідну форму дієслів з дужок. 1. I (had been waiting/waited) for those pills and drops for two hours before they were ready. 2. They (had been waiting/had waited) for an ambulance car for ten minutes before it arrived. 3. My son (had been taking/has taken) some medicine from cold before breakfast. 4. Pete (had been looking for/has been looking for) a chemist’s for a long time before he saw a building. 5. A surgeon felt tired because he (had been working/worked) hard all day. 6. A chemist (had been making/made) a medicine for an hour before it was ready. 7. His father (had been working/worked) at this hospital for 25 years before he retired.