The cost of oil is less than _______ of gas.
| A．it | B．one | C．the one | D．that |
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 |
It was not rare in ______that people in ______fifties went to university for further education.
| A．1980s; their | B．the 1980s; the | C．the 1980s; their | D．1980s; the |