问题
选择题
-- When do you need to pay the balance?
-- ______ December 31.
A．In
B．By
C．During
D．Within
答案
答案：B
搜题请搜索小程序“爱下问搜题”
-- When do you need to pay the balance?
-- ______ December 31.
A．In
B．By
C．During
D．Within
答案：B