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）

高空作业要使用专门的用具传递工具，另部件：材料等，不得抛掷传递，高空作业要系安全带。