Instruction
Select the best answer to complete the sentence.
1. She looks young, in -------- she is over fifty.
2. -------- this machine, we can do that difficult task.
3. It won’t be long -------- the Chinese economy overtakes the Japanese economy.
4. I ------- his behavior in the waiting room to see how he communicates with others.
5. Mr. White was -------- president of the committee.
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