请问老师们：they went home ＿＿ happily.怎么填?为什么?

请问老师们：they went home ＿＿ happily.怎么填?为什么? they went home _____ them happily当中该填哪个介词 ____,they went home,---------.为什么填 Their work finished,singi Happily,he went to home,为什么不可以说Happy ,he went to home?形容词不是可 The problem ( ),they all went home happily.A.setting B.to be ：WITH HIS WORK[ ],HE WENT HOME HAPPILY after happily picnic the went the people home不知怎么连句 they went home together_____. go happily they home 连词成句 The final test ____,all the students went home happily. The sun_____,they went home Their task( ) ,they went home.