句型转换（每空一词）。

1. David is going to have some Chinese classes tomorrow.（改为否定句）

    David ____ going to have          Chinese classes tomorrow.

2. The students of Class Two have a field trip on Sunday.（用next Sunday改写）

    The students of Class Two                                             a field trip next

Sunday.

3. They are going to go fishing tomorrow morning.（改为一般疑问句，并作肯定回答）

     －                  going to go fishing tomorrow morning?

     －Yes, they____．

4．We are going to the city by train.（对画线部分提问）

                                         going to the city?

5. She is going to leave at nine tomorrow.（对画线部分提问）

                         she going to leave?