Match the following words or expressions with their synonyms.
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Fill in the blank with suitable preposition or adverb.1. Endless wars have turned this once wealthy country _____ one of the poorest nations in the world.
Fill in the blank with suitable preposition or adverb.2. If you feel _____ staying at home, we could watch one of your favorite movie DVDs.
Fill in the blank with suitable preposition or adverb.3. She was a confident and outgoing girl, but the presence of the president reduced her _____ silence.
Fill in the blank with suitable preposition or adverb.4. I'd like to sign _____ for volunteer (志愿的) work with an environmental organization. I hear it is a great way to connect with the community.