16 Complete the second sentence so that it means the same as the first. Use no more than three words. 1 They haven't finished exploring the cave yet. They are still exploring the cave. 2 The festival started three days ago and it's still going on. The festival ....... on for three days. 3 We can't leave yet because it's still snowing. It ....... snowing yet so we can't leave. 4 What are your favourite holiday activities? What ...... ..... like doing on holiday? 5 Olive rarely stays in expensive hotels. Olive ...... in expensive hotels very often. 6 Dinner is at the hotel tonight. We ... ... dinner at the hotel tonight.