【题目】Hearing the good news that he had been admitted into his dream university after so many years of hard work, his parents couldn't help b into tears.
在线课程【答案】bursting
【解析】bursting 考查动词。此处有俩固定搭配：couldn't help doing：禁不住做；burst into：突然……，结合这俩固定搭配可知此处填bursting。