Everybody’s fingerprints are _______, so the police can easily find the thieves if any is left when they’re stealing.

It seems quite _____ to expect a student to master 3,000 words within only 5 days.

I like this jacket better than that one, but it costs almost three times _______.

    -- I have warned him of the danger but he insisted on going there alone.
-- What a _______ boy!

There are many insects in the world that never do _______ harm to human beings.

Who do you think is the greatest man _______?

In the history of Chinese revolution, Taierzhuang Battle was a ________ battle in which both sides suffered heavy losses.

Attention, please! And keep ________ when I am taking a photograph of you.

As we know, Jean is a       investor（投资者）who studies the market before he buys things.

The study was carried out in one small town so we can’t be sure that the results are truly ________.