I could just see a car in the distance, but I couldn't ______ what color it was.
No matter what substance it may be, it is ________ atom.
You should make good use of every _______minute to study
Smell the flowers before you go to sleep, and you may just______ sweet dreams.
It didn't take the children long to _______ the correct answer.
Food supplies in the flood-stricken area ______. We must act immediately before there’s none left.