At ______, photography is a chemical process, during which a light-sensitive material is altered when exposed to light.
A、itsmostbasicA
暂无解析
ProfessorJohnsonissaid_____somesignificantadvanceinhisresearchinthepastyears.
Shehiredalawyertoinvestigate,onlytolearnthatGabrielhadremovedhernamefromthedeed.Theinfinitiveverbphrase“onlytolearn”isused____.
Theopeningceremonyisagreatoccasion.Itisessential_____forthat.
You____thatlettertoJames.However，youdidn't.
IfonlyI_____playtheguitaraswellasyou!
