_____ at in this way, the situation doesn ’t seem so desperate.
A、LookingB
暂无解析
Underthis（）pressuresomeoftherocksevenbecameliquid.
Breadandbutter（）likedbyWesterners.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
Wecanhear____fromthebackoftheroom.
Theopeningceremonyisagreatoccasion.Itisessential_____forthat.
