Because of ______ high demand for Type AB blood, ______ supplies of it are usually limited.
The limits of a person’s intelligence, generally speaking, are fixed at birth, but ________he reaches these limits will depend on his environment.
The police still haven’t found the lost child, but they’re doing all they .
They are broadening the bridge to ________ the flow of traffic.
There are a small number of people involved, possibly ______twenty.
Only after Mary read her essay the second time the spelling mistake.