The development of industry has been ________ gradual process throughout ________ human existence, from stone tools to modern technology.
| A．/; the |
| B．the; a |
| C．a; / |
| D．a; a |
相关试题
The film was terrible. It wasn’t ______to the teenagers.
| A．benefits | B．benefited | C．of little benefit | D．of much benefit |
—Did you visit the famous museum?
—No.
We ________ it, but we spent too much time shopping.
| A．could have visited | B．must have visited |
| C．can't have visited | D．shouldn't have visited |
We’ll pay a ______visit to the beautiful city if we have enough time.
| A．a four-days | B．a four-day | C．four days | D．a four day |
Our company forbids ______, that is to say, we are not allowed ______here.
| A．to smoke; to smoke | B．smoking; smoking |
| C．smoking; to smoke | D．to smoke; smoking |
people in ______fifties went to university for further education.推荐套卷
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