By the time the delegation arrived, the organizers had already resolved most of the logistical problems that had threatened the event., She had barely recovered from the previous week’s illness when she was asked to travel for another urgent assignment., They realized the negotiations would be challenging because the two companies had disagreed on similar issues in the past., He apologized for being late, explaining that he had left his passport at home and had to go back for it., The museum had implemented strict new rules before the government even announced the updated safety regulations., We understood the situation much better after we learned what had happened during the initial phase of the project., The committee had postponed the final decision several times before they finally reached a compromise., She felt frustrated because her colleagues had misunderstood her proposal from the very beginning., By the end of the conference, the participants had been debating the same controversial topic for so long that everyone was mentally exhausted., He had been searching for an apartment for months before he finally found one he could afford in the city center., They had been negotiating with potential investors when an unexpected competitor suddenly entered the market., She had been rehearsing the presentation repeatedly, so she felt confident despite the large audience., We had been driving for nearly eight hours when we noticed the fuel gauge had stopped working., The scientists had been collecting data for several years before they published their groundbreaking results.,

Past perfect simple and past perfect continuous b2

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