he is reading now (变否定.疑问）

否定句：
He is not reading now.
They didn't play tennis last week.
Tom didn't do any cooking last week.
He doesn't study English every day.
疑问句：
Is he reading now?
Did they play tennis last week?
Did Tom do any cooking last week?
Does he study English every day?

he is reading now (变否定。疑问）
he is not reading now
Is he reading now?
they played tennis last week(同上）
they didn't play tennis last week.
Did they play tennis last week?
tom di...

He is not reading now. Is he reading now?
They did not play tennis last weeek. Did they play tennis last week?
Tom did not do any cooking last week. Did Tom do any cooking last week?
He does not study English every day. Does he study English every day?