你是初中生吧?我是初中英语老师,我来帮您吧。1.I am cleaning the room now.2.What's your father doing now?He is watching TV.3.He is writing a letter now,isn't he?Yes,he is.4.Linda often does her homework in the evening,but she is watching TV this evening.5.It's a fine day today.(或The weather is fine today.)6.I can't go out with you.It's raining outside.7.We are having supper now.8.My parents are getting older and older.9.I watched TV at home yesterday.10.It was rainy last Sunday.11.I went to Beijing last month.12.He was very tired after he played basketball yesterday.13.Last week I went to school by bike.(或I rode a bike to school last week.)14.Xiao Ming went to the cinema yesterday.15.I stayed at home last Sunday.16.Where did you go yesterday?17.I went to visit the museum yesterday.18.Grandpa went fishing yesterday afternoon.