【C3】A．lettersB．correspondenceC．postD．attachments

A．extendedB．associatedC．fixedD．attached

A．greetB．annoyC．approachD．attach

【C6】A．providesB．attributesC．absorbsD．attaches

【C5】A．bringB．attackC．attractD．attach

The word "these" in the first paragraph refers to______.A．lettersB．photographsC．paintingsD

【C7】A．professionB．careerC．postD．job