If you swim in a river or lake, be sure to investigate is below the water surface. Often there are rocks or branched hidden in the water.
The important task will take Peter and me about four months to complete, so it will be a long time _____ we meet you again.
Wouldn’t it be ______ wonderful world if all nations lived in ______ peace with one another?
Human beings are different from animals _______ they can use language as a tool to communicate.
______ is often the case with elder people, my grandma talked about my new hairstyle for at least 50 minutes nonstop.
Come ______, everybody! Look at this _______, and you will find something terrific.