I think english is important 改成疑问句和否定句怎么变?I think English is important Tom enjoy his life every dayThey fly to London every week.I did my homework last night .We drew a lot of pictures yesterday .以上改成疑问句和否定句.

I think English is important 疑问：Do you think English is important ?.否定：I don't think English is important .
否定：Tom doesn't enjoy his life every day.疑问：Does Tom enjoy his life every day?
They don't fly to London every week。 Are they fly to London every week?
I didn't my homework last night .Did you do your homework last night ?
We didn't draw a lot of pictures yesterday . Did we draw a lot of pictures yesterday ?

do I think English is important
does tom enjoy his life every day
do they fly to London every week
did I do do your home work
did we draw a lot of pictures yesterday

Is English important?
I don't think English is important.
Does Tom enjoy his life every day?
Tom doesn't enjoy his life every day.
Do they fly to London every week?
They don't fly to London every week.
Did i do my homework last night?
I didn't do my homework last night.
Did we draw a lot of pictures yesterday?
We didn't draw a lot of pictures yesterday.