Complete the text with the correct form the verbs in the brackets?

Complete the text with the correct form the verbs in the brackets. Choose present simple, present continuous, past simple ir past continuous. Last summer while I _______ (walk) Home from school, I ________ (see) a terrible accident. A car ______ (hit) a boy on a bycicle an the boy was badly injured. He _______ (not wear) a safety helmet. As you can see, I ______ (wear) a safety helmet now. I always ______ (wear) a helmet because it is dangerous to ride a bicycle in the streets without one .