根据所给汉语,完成英语句子。每空填一词。 1. 昨天我碰巧在街上遇见他。 Yesterday I meet with him in the street. 2. 和陌生人交往很危险。 It's dangerous to ______ ___ with strangers. 3. 男一方面,他不大吃零食。 ____ the other ______, he doesn't eat many snacks. 4. 他帮助那老人下了车。 He ____ the old man ______ of the bus. 5. 重要的是不要打太多的电子游戏。 ___ _ important not to play computer games too ______.