You shouldn't keep silent when________.
The farmers are in bad need of rain,but a (an) large amount of rainfall will cause Floods.
My toothache me. I thought it was going away, but it is getting worse now.
-Do you really mean it when you say he will a good president?
She must have ranked her birthday presents in order of because the top one is her favotite.
For some time the discussion went with no one saying word. Alice finally broke. Silence.