无论改什么问句，时态是不变的，变的只是句式。

现在进行时的特问句结构是：特殊疑问词+be+主语+剩余部分+?

例：I

am

having

an

English

lesson

now.→What

are

you

doing

now?

They

are

playing

games

at

the

moment.→What

are

they

doing

at

the

moment?

He

is

reading

under

the

tree.→对reading提问：What

is

he

doing

under

the

tree?

→对under

the

tree提问：Where

is

he

reading?