—We'll have a hiking trip, but when shall we meet?

—Let's make it ______ half past eight ______ the morning of June 21. [ ]

A. at; in

B. /; on

C. /; in

D. about; by

填写票据金额时，如￥20050．37，其中文大写应写成（）。

A.贰万零伍拾元叁角柒分整

B.人民币贰万零零伍拾元零叁角柒分

C.人民币贰万零伍拾元叁角柒分整

D.人民币贰万零伍拾元零叁角柒分