A．They axe useful and practical.
B．They are fashioned and quick to arrive.
C．They are imaginative and personal.
D．They are of great importance.

A.They
B.
B．They
C.
C．They
D.
D．They

【参考答案】

A
解析：文章中明确提到Maria Angelou的观点：All these (phone calls，inst......

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