Используя how many либо are there образуйте вопросы к предложениям yes, it is dark at night. the sky is blue by day. there are seven days in a week.
is there можно?
Is there dark at night?
Is there blue sky by day?
How many days are there in a week?
is there any dark at night?
is there sky blue by midnight?
How many days are in the week?