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学业达标测评l知能达标演练
Ⅰ. 单项填空
1. (2012·昆明高二检测)If _____ , the disease may become deadly.
A. to be treated B. not being treating
C. not treating D. untreated
2. _____ twice, the postman refused to deliver our letters unless we chained our dog.
A. Being bitten B. Bitten
C. Having bitten D. To be bitten
3. John received an invitation to dinner, and with his work _____, he gladly accepted
