—How many days are there a week?
— Seven.
A. onB. atC. in
—Welcome back to school.
— .
A. Nice to see you. B. Thank you.C. All right.
is it today? It’s Thursday.
A. What time B. What dayC. What
is the first day of a week.
A. MondayB. SundayC. Saturday
My parents don’t work Saturdays or Sundays.
A. atB. inC. on