Choose the correct forms of the verbs 1. Bosphorus Bridge connected/has connected east and west since 1983 2. Thousands of animals lived/had lived in the valley by the time 3. They built /had built a huge bridge before we came to the village 4. When the man returned home his son has gone/ had gone to bed 5. The flat was very dirty , because nobody has cleaned / had cleaned it for a long time