用所给单词的适当形式填空。
They are talking ________(happy),but I feel ________(happy)．
I often hear Nancy ________(sing)songs．Listen!I hear her ________(sing)an English song now!
When I passed the room,I heard my sister ________(sing)．
Mary is afraid ________(talk)with her maths teacher．
Put on the coat,Mike．It can make you ________(warm)．
Lily is ________(worry)about her mother's health．
She is a ________(friend)girl,so everyone likes her．
He is a ________(lone)person．
英汉互译。
1．朝着……微笑 ________
2．feel lonely ________
3．be afraid to do ________
4．make friends with ________
5．worry about ________
1．跟……交谈________
2．安静地，沉默地________
3．一天天地________
4．初秋________
5．进入教室________