Don’t play by the river _______ you fall in and drown!
The biggest whale is ________ blue whale,which grows to be about 29 meters long—the height of ________ 9story building.
We can never expect ________ bluer sky unless we create ________ less polluted world.
What ________ pity that you couldn't be there to receive ________ prize!
Now that we've discussed our problem,are people happy with the decisions ________?
The children all turned ________ the famous actress as she entered the classroom.