a cup of water中的介词of什么意思,为什么要加介词?

a cup of water中的介词of什么意思,为什么要加介词? putting a cup of water near the computer什么意思 He passed a cup of tea__her.填介词 Would you like _____have a cup of coffee?填介词! They had a pleasant chat ______ a cup of coffee.用什么介词 Would you care_____a cup of tea?填什么介词啊 with a cup of pure water,face a lifetime of complex什么意思 英语填介词：hand a glass of water() him know后面加什么介词?为什么要加这个介词? a cup of coffee中间为什么要加of呢,不加不可以吗 帮忙!介词解释在这些句子中为什么用这些介词,什么意思?We both share a love OF music.It' 英语of介词的疑惑a friend of mine这里为什么不用my of是介词啊 介词后面不是要跟宾语吗