I like our teachers because they can allow us _________what we think.
We have different pies, _______apple, cherry, and strawberry pies.
Amy couldn’t stop _________ when her friend told her the funny joke.
It’s exciting to see the huge glass ball _________ through the darkness.
My uncle _____ Germany on business many times.
Nanjing will need _________ volunteers for the 2016 Summer Youth Olympic Games.