What they need ______ enough money, while what we need ______ enough workers.
Jenny works hard as usual and it has __________. She got the first in the final exam again.
I was trying to sound __________ even when I was very nervous while I was making the speech.
—Who's the man talking to our teacher?—A professor __________ a visit to our school.
Many people __________ death in the earthquake as a result of the delay of the food supplies.
In some cases, different approaches __________ the same scientific problem lead to the conflicting theory.