11 Read the passage carefully. Choose the best option A, B, C or D for space (1) Accidents can happen in any places and at any time, so you should be careful to avoid them. First of all, you should not play ______ (1) a sharp tool like a knife or a pair ______ (2) scissors. Second, you should not touch animals on the street ________ (3) they may bite or scratch you. When you are ________ (4) a bike or a motorbike, you should _______ (5) a helmet. If an accident happens, call for help. A. with B. from C. on D. to

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