ما الخطأ في هذا النص ؟

My favorite reptile is the Cheetah. It is truly an amazing creature which can trot at a top speed of 60 m.p.h.! I’ve always wanted to go to the cool planes of Africa to see the Cheetah in action. I imagine it would be a disappointing experience looking at those Cheetah run. A few weeks ago, I was watching a National Geographic special on the radio and my wife said, “Why don’t we go to Africa next summer?”. I hopped for joy! “That’s a lousy idea!”, I stated. Well, next week our plain leaves for Africa and I can hardly imagine that we are going to Africa at first