根据句子后面括号内的提示,改变下列句子的句型.每小题2分)
根据句子后面括号内的提示,改变下列句子的句型
1.I was watching TV at home yesterday evening.（改为一般疑问句）
2.They are playing basketball on playground now.,（改为否定句）
3.We were hiking at Wutong Mountain yesterday afternoon.（改为一般疑问句
4.He was having a bath when the telephone rang last night.（改为否定句）
5.She was having dinner when someone knocked at the door.（改为一般疑问句）