Hearing the news,he cried.中的逗号前面的内容表示什么?

Hearing the bad news ,he felt (u ) hearing the news ,he was w____ with joy he felt sad after hearing the f____ news Hearing the exciting news,he cried rather than smiled.为什么用hearing而不用hear? He was happy when he heard the news.这句话的缩写He was happy when heard the news还是He was happy when hearing the news he was angry when he heard the news. he was angry ___the news.1 with hearing 2 in hearing 3 on hearing 4 for hearing 选择哪一个,及分别说出每个为什么对与错 He seemed ____on hearing the news.英语急!He seemed ____on hearing the news. A. carefully B. happy C.hurry D. worry 选哪个?为什么? when he hearing the news.he burst into tears?怎么改错 听到这个消息他赶紧给警察打电话 Hearing the news,he ____ _____ call the police On hearing the news,he jumped with joy改写3句 He jumped with joy on hearing the news中on 能不能换为while After hearing the news,he felt even___(sad).是要用sad的原级还是比较级呢? After hearing the news,he seemed _____.A.sad B.to sad C.be sad Hearing the bad news ,tears came into his eyes.要不要加he ( )hearing the news,he burst into tears请问填什么介词,为什么不能用after hearing the news he jumped with joy 为什么不是having heard... he looks ___(happy) at his daugher after hearing the good news.填什么为什么 After hearing the news,he fainted.为什么前面不用过去完成时态呢