The last month of a year is---- ------is the eieventh month

The last month of a year is( December十二月 )
( November 十一月)is the eieventh month of a year
用所给词的适当形式填空
1 Mr.zhang has three sons.zhang Jun is his_third ____(three)son.
2 June 8th is his__twentieth ___(twenty) birthday.
3 Thank you for __helping ___(help) me
4 Bob is the_second ____(two) boy to come here.
5 Jim wants __to play ___(play) soccer this afternoon.