The children are listening to him.中的listening to这个词组为什么成立为什么hearing不能代替listening to

The Lis are having a holiday__the beach___Sanya The Lis are haring dinner in the liring room .对haring dinner 提问 the Lis are s___and they sell their goods all over the world The Lis are going to the park.这是现在进行时还是将来时 where are the children? Why are the children The children are playing games. the children is 还是are 求一句英语句型the Lis are looking forward to seeing their friend,Bob,who has gone to Australia.保持原意The Lis are expecting________ ________their friend,Bob,who has gone to Australia. Children are what the mothers are. “children are what the mathers are The children are wearing beautiful clothes.　　The children are_________beautiful clothes. The children are water the trees. The children are water the trees对吗? The children are _______ at the beach. the lis left shanghai three day ago.= the lis __ __from shanghai for three days The Lis left Shanghai three days ago=The Lis have_____ _____from Shanghai for 3 days hou nice children they are!的children前要加the吗