Scientists say human activity contributes to climate change, but they do not agree on the rate_______ climate change may be developing.
You need a password to get ________ to the computer system.
Don't ________ your eyes by reading in a bad light.
He was passionately addicted to ________ to pop music.
Don't ________ your troubles too often.
The incomes of skilled workers went up. __________,unskilled workers saw their earnings fall.