单项选择题
M: I am afraid John is busy at the moment, madam. W: Oh, dear. John always does my hair.
A. John is a close friend of the woman’s. B. John is the best hairdresser in town. C. John is a hairdresser. D. John often helps the woman.
A. which B. whose C. of it D. its
A. When compared B. Compare C. While comparing D. Comparing