Are you having lunch at home?Yes,(I am).
Do you like winter?().(肯定回答) Yes,I do.
Jack is (flying the kite) now.(画线部份提问,括号里的单词是画线部分)
What is Jack doing now?
l have lunch at(12:00noon).
(When) ( do) you (have) lunch?
一般疑问句:He goes to work at 7:00.
(Does)he (go) to work at 7:00?