根据汉语完成下列句子。 1.当他还是一个小孩子的时候,他就开始学习弹钢琴了。 When he was a small boy, he started _____ _____ _____. 2. 我不想开车出去兜风。 I don't want to _____ _____ _____ _____. 3. 我昨天在游乐场玩得很开心。 I _____ _____ _____ _____ at the amusement park yesterday. 4. 你能帮我切一片洋葱吗? Could you help me _____ _____ a piece of onion? 5. 我和我的哥哥长得很像,因为我们是双胞胎。 My brother and I _____ _____ _____, because we are twins.