二、单项选择
1. The of the Itaipu Dam took 30 000 people seven years.
A. construction B. structure C. destruction D. instruction
2.Operations which left patients and in need of long periods of recovery time now leave
them feeling relaxed and comfortable.
A. exhausted B. injured C. ridiculous D. delighted
3. The power station we visited half the province’s energy.
A. generals B. gentles C. generates D. generations
4. Have you heard of the town when they built the dam?
A. submerge B. submerging C. being submerged D. submerged