2 The reason for her wanting to travel to Colorado is to visit the Mesa Verde National Park.
3 The 1940 and 1944 summer Olympics were cancelled due to World War II.
4 They stopped speaking to each other because of an argument.
5 Emily Cummings became famous on account of the fact that she invented a portable eco-friendly fridge.
6 We couldn’t go to the festival since the weather was poor./Since the weather was poor, we couldn’t go to the festival.
7 The plane was prevented from taking off because of engine trouble./Because of engine trouble, the plane was prevented from taking off.
8 Can you tell me the reason why you changed your travel plans?