At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
A
暂无解析
The opening ceremony is a great occasion. It is essential_____ for that.
ProfessorJohnsonissaid_____somesignificantadvanceinhisresearchinthepastyears.
I _____ the party much more if there hadn’t been quite such a crowd of people there.
Marytiptoedoverandtooktheclockawaybecauseshehatedtohearit___whenshewastryingtogotosleep.