At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
A、itsmostbasic
B、itsbasic
C、themostbasic
D、thebasic
Our（）sensitivitydecreaseswithage.Byage60，mostpeoplehavelost40percentoftheirabilitytosmelland50percentoftheirtastebuds.
A、sensible
B、senseless
C、sensitive
D、sensory
Imeant____youaboutit,butIforgottodoso.
A、telling
B、havingtold
C、totell
D、tohavetold
A、Whynottocallon
B、Whydon'tcallon
C、Whynottocallingon
D、Whynotcallon
Underthis____pressuresomeoftherocksevenbecameliquid.
A、intensive
B、weighty
C、intense
D、bulky