1.The school year is divided into two semesters ,the first o

1.The school year is divided into two semesters ,the first of which is September through December ,and the second through=The school year is divided into two semesters ,and ( )is September through December ,and the second through
2.How are you doing =(3个同义句)
单项选择
3.---You forgot your purse when you went out .-Good heavens
a.so did I b.so I did c.I did so d.so I so did
4.The CCTV Tower ,( )base is an electrical equipment shop ,is frequently visited by travelers .
a.which b.whose c.its d.that