1) Mr. Green’s office is _____ the 26th floor.
You can take the lift here.
A. at B. in
C. on D. for
讲解图如下：
2）The 20th World Cup Opening Ceremony was held in Brazil
___ June 12th, 2014.
A. in B. at
C. on D. for
讲解图如下：
简单留学，就来华盟