单项选择题

She is a very（）secretary: She never forgets anything or makes a mistake.

A、 anxious
B、 effective
C、 adequate
D、 efficient

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单项选择题

Three - fourths of the suffrage of the earth（）sea.

A、 are
B、 were
C、 is
D、 has been

单项选择题

Writing is a slow process, requiring（）thought, time, and effort.

A、 significant
B、 enormous
C、 considerable
D、 numerous

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