用所给词的正确形式填空。小题1:My friends live on the _____________ ( two )

用所给词的正确形式填空。
小题1:My friends live on the _____________ ( two ) floor.
小题2:The boy often ( go) to the library to read stories.
小题3:Look! He is ___ （put）on his shoes, he wants to play sports.
小题4:-----What day is it today?
------It’s ______________ (the first day of a week).
小题5:Most of the students in our class think math is ____ .（not easy）