( ) 26. ______ Friday, we have science ________ 10:00 to 11:00.
A. On，on B. From，at C. On，from D. On，at
( ) 27. In the USA, the second day of the week is __________.
A. Sunday B. Monday C. Tuesday D. Friday
( ) 28. — When do you have P.E.?
— ___________..
A. On Friday B. In Friday C. At school D. It’s nine.
