问题
选择题
—Will you drop ________ us tomorrow evening for a talk?
—Sounds great! [ ]
A. on in
B. on at
C. in at
D. in on
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Will you drop ________ us tomorrow evening for a talk?
—Sounds great! [ ]
A. on in
B. on at
C. in at
D. in on
答案：D