Fill in the past simple and underline the correct linking word. David 1)(be) scared and/because an alligator2) be) after him. David and Sandra3) (be) on the river bank when/so they4) (see) the Jivaro Indians with a white man.Sandra 5) (not/know) him then/but David6) (recognise) him as Doctor Hamperdin.David 7) (be) confused and/so DoctorHamperdin 8) (explain) that he lived with theJivaro Indians after his accident. He 9) (say)the Indians 10) (love) their land and/but they11 (want) to protect it. He 12) (promise) to help them write their article then/so he13) (ask) them not to tell anyone about him.​