Whose eraser is this?

--It's ________.

-Mr White asked me to remind you of the meeting this afternoon. Don't forget it !

-OK, I_______.

--- How was your vacation in Shanghai?

--- Oh, __________, I can ’t stand it.There were too many people and the weather was too hot.

---HowwasyourvacationinShanghai?

---Oh,__________,Ican’tstandit.Thereweretoomanypeopleandtheweatherwastoohot.

-Look!Someone_______thefloor.It'sclean.

-Well,itwasn'tme.Iwentshoppingjustnow.