用方框内所给词组的适当形式填空。 one by one, have good ideas, do one's best, fall off, think of 1. Ann ______ her bike yesterday and hurt her legs badly. 2. Who can help me ______ an English name? 3. The students went out of the classroom ______ as soon as the history class was over. 4. Jenny ______ to jump,but she was lost. 5. Do you ______ to save the rabbit's life?