Lily and Grace are my best friends. ________ of them are very smart.
Hawaii (夏威夷) is famous ______ its beautiful beaches (海滩). [ ]
There used to be lots of fish in the lake.— Yes, but there are very __________ now.
You look very tired. Why ______ and have a rest? [ ]
“Underground” is the only word in the English language _____ begins and ends with the letters “und”.