Complete the text with the present perfect form of the verbs below. climb a not cross donate a not forget a have a hear help a plan a run sail say a not stop a walk you ever of Sir Ranulph Fiennes? Sir Ranulph is a famous British explorer. He 2 to the North and the South Poles and he 3 up the River Nile. Sir Ranulph is nearly seventy years old now and he 4 a lot of health problems. In 2003, he had a heart operation, but that 5 him. Since then, he 6 Mount Everest and he? a lot of marathons for charity. Sir Ranulph 8 many different organizations. People ® . more than £14 million to charity because of his work. Now, Sir Ranulph is going on a new expedition because he 10 the Antarctic in the winter. His doctor 11 he can go. His team 12 the trip carefully and they hope they , 13 anything.