he is back home now 中 back要加ing吗

he is back home now 中 back要加ing吗 rush back home?要加back? 2,walk back-----home 要加to,for ,at 3,shall we 后面要加动词ing吗? Jack is back home from the zoo.这句话中back的词性是什么,home还是副词吗?还是说词 he came back home,sick He comes back home at____ He() back home yesterday morning. He came back home 这里的back是介词吗 不是说不及物动词要加上介词才能接宾语吗 back back home over I am back home 中”back"和"home"的词性 He is at home now,maybe.这个句子中at home now是状语吗 The old man_____on the way back home yesterday.Now he's in h