I 【had】 a very embarrassing experience this evening.when I was on my way 【to去掉】 homeThough I saw him from behind,【but去掉】 I was sure he was a friend of 【mine】I gave him a tap on the 【shoulder】at 【the】 same time,I was terribly 【embarrassed】 【and】?I didn't know how explain to himAfter thatI walked away as quickly as 【possible】completely taking by surprise这句可能有问题深藏功与名 学姐只能帮你到这里了