When workers are organized in trade unions, employers find it hard to lay them ________.
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________ they've got to know each other a little better, they get along just fine.
Theenginehasbrokenandtheboatis______onthewater.
She ________ her nervousness to the importance of the interview.
When I came through the customs at the airport, I had to pay ________ on a clock I had bought.
Others argue that since the earth has endured a long string of ice ages in the last two millionto three million years, any warming is ________ to be temporary.
